Infinite Donuts
A thief argues that taking one donut from an infinite supply leaves infinitely many, so nothing was stolen.
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2018-09-28-infinite-donuts/ (CC BY-NC 4.0)Transcript
A (beside an endless numbered row of donuts with #1 missing): "Someone has stolen a donut! I AM IMPOVERISHED AND I DEMAND BRUTAL JUSTICE"
B (crumbs on face): "But you had infinite donuts before... and you still have infinite donuts... so really, no theft has been committed."
A: "Sounds like math only a cold-blooded criminal would know about."