Assane Diop steals with white gloves and a smile. He is not desperate for the money: what makes his eyes shine is the play, the plan that comes off perfectly, the feeling of having been smarter than the museum, the police and the villain he is chasing. For Skinner’s operant conditioning, Assane teaches something we forget when we think about crime: that the most powerful reinforcement is not always material.
// The theoryNot every reinforcement is counted in money
Skinner defined reinforcement as any consequence that increases the probability of repeating a behavior. The key is that what reinforces is subjective: for one person it is money, for another attention, for another excitement or control. Assane steals, yes, but what truly reinforces him is the triumph of his wits: every heist that succeeds rewards his self-image as a genius, his revenge against the powerful who humiliated his father, the adrenaline of risk mastered. It is an intensely emotional reinforcement, and that is why his behavior is so resistant.
And there is a second decisive behavioral factor: for Assane, punishment is almost impossible. He is too skilled, too slippery; negative consequences barely graze him. Skinner predicts it without margin: a heavily reinforced behavior that is almost never punished becomes practically inextinguishable. Assane does not stop because, quite simply, winning costs him nothing and tastes like glory.
Deterrence needs certainty, not harshness
Assane dismantles the myth of deterrence through harshness. Criminology, following Skinner, knows that for punishment to extinguish a behavior it must be above all certain —not severe—. It does little good to threaten terrible penalties if the probability of suffering them is tiny: an improbable punishment, however harsh, barely weighs against an immediate and certain reward. Assane lives in that blind spot: as long as no one catches him, no law deters him. The lesson inverts political intuition: against ingenious crime, the certainty of the consequence matters more than its crudeness.
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// The subjectThe grievance that gives the prize its meaning
Behind the game there is an engine: the injustice suffered by his father, framed and killed by a powerful magnate. That grievance turns every theft from the rich into something more than a crime: into an emotional reparation that reinforces doubly. Skinner would say the context defines the value of the reinforcement: stealing from someone you hate does not reward the same as stealing from an innocent. The series builds Assane as an avenger precisely so that his emotional reinforcement —justice by his own hand— becomes understandable. Understandable, we insist, not legitimate.
Assane Diop
// The crackNeither Robin Hood, nor a pure reward machine
Assane’s crack is his charm: the fiction paints him as so elegant and righteous that we forget he steals, deceives and puts innocents at risk along the way. That the reinforcement of the grievance explains his crusade does not exonerate it: the injustice against his father is real, but it does not turn his crimes into justice. And the opposite crack —seeing him as a mere automaton of rewards— forgets that Assane plans, chooses and could stop. Conditioning explains why it is so hard for him to quit; it does not remove his decision to do it.
The series flirts with absolving him for being likable, and there the caution of the file is advisable: understanding what reinforces a white-glove thief is not signing his pardon. Rewarded ingenuity still leaves real victims amid the applause.
Certainty and alternatives, not just threats
Assane points to two real behavioral levers. One: against skilled crime, raising the certainty of the consequence deters more than toughening penalties that are almost never applied. Another: when the reinforcement sought is emotional —recognition, control, reparation of a grievance—, prevention comes through offering legitimate channels that provide those same satisfactions. An Assane with a real channel to repair his father’s injustice —effective justice, recognition— would have had less to gain by stealing. Ingenious crime is not extinguished by fear alone; it is extinguished by changing what truly rewards.
Assane Diop smiles because he always wins, and he always wins because winning never costs him anything. It is the exact formula of a behavior that the prize made inextinguishable: much reinforcement, no punishment. Skinner would need nothing more to explain it.
// The mechanismThe unpredictable prize is the one that hooks hardest
Skinner studied not only whether a behavior is rewarded, but when. In Schedules of Reinforcement (Ferster and Skinner, 1957) he catalogued the different reinforcement schedules and discovered something counterintuitive: it is not the constant reward that creates the most stubborn behavior, but the variable ratio —rewarding after an unpredictable number of responses—. A pigeon rewarded one out of every so many pecks without rest, and when the reward stops coming it takes a very long time to give up. It is the most extinction-resistant pattern there is, and it is no accident that it is exactly the one exploited by the slot machine: you never know if the next pull pays, so you keep going. Operant conditioning calls it intermittent reinforcement, and it is the psychological machinery beneath gambling, betting and the con.
Assane lives inside that schedule twice over. As a thief, his own behavior feeds on intermittent reinforcement: not every heist comes off cleanly, there are plans that go wrong and scares that almost catch him, and it is precisely that uncertainty —the reward that sometimes arrives, never guaranteed— that keeps the adrenaline alive and the behavior switched on. A sure haul every time would bore him; variable risk hooks him. And as a con artist, he applies the same lever on his marks: a good con doses out small unpredictable rewards —a gesture of trust here, an unexpected gain there— until the victim chases the next prize and stops calculating. Assane forces no one; he turns his target into the gambler who will not get up from the machine.
The heist is shaped step by step
The operant also explains how a complex behavior is built: through shaping and chaining. The final result is not rewarded all at once, but each successive approximation, link by link, until a long sequence is joined in which each step is at once the reward for the previous one and the signal for the next. That is how an animal is trained for an impossible routine, and that is how Assane assembles a heist: earning an access, planting a contact, sowing a false clue, each move reinforced by the small success that opens the door to the next. What the viewer sees as a brilliant plan born whole is, in behavioral terms, a chain of behaviors shaped and strung one after another.
Three key takeaways
- For Assane the reinforcement is not just the loot, it is the thrill of rewarded ingenuity and the reparation of a grievance: an intensely emotional prize that makes his behavior highly resistant.
- Since punishment is almost impossible for someone so skilled, nothing extinguishes it: deterrence depends on the certainty of the consequence, not on its harshness.
- His charm and his grievance explain, they do not exonerate: there are still victims and still a decision. Prevention is raising certainty and offering legitimate channels to what he truly seeks.
Sources · further reading
- Skinner, B. F. (1953). Science and Human Behavior. Macmillan.
- Nagin, D. S. (2013). «Deterrence in the Twenty-First Century». Crime and Justice, 42(1).
- Leblanc, M. (1907). Arsène Lupin, gentleman-cambrioleur. Pierre Lafitte.
Case-file questionsFrequently asked questions
¿Quién es Assane Diop?
Assane Diop («Lupin») es un villano de Lupin, analizado en KRIMINIS con la lente de la criminología. He steals with elegance and smiles: for Assane the prize is not only the jewel, it is having been smarter than everyone.
¿Por qué Assane Diop (Lupin) se convierte en villano?
Assane Diop and operant conditioning: when the reinforcement is not just the loot, but the thrill of outsmarting everyone. And why punishment, so improbable, never deters the man who always gets away.
¿Qué teoría criminológica explica a Assane Diop?
El caso de Assane Diop se analiza desde la Teoría del condicionamiento operante. Skinner’s operant conditioning holds that reinforced behavior is repeated. Assane Diop, the modern Lupin, shows a double reinforcement: the material spoils of the theft and, above all, the emotional reward of cunning that pays off. With punishment as improbable as his, no negative consequence ever manages to extinguish a behavior that every successful heist rewards anew.
