Mathematician mfs when I solve the sphere packing problem with infinite efficiency by assuming the spheres are bosonic:

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Mathematician mfs when I solve the sphere packing problem with infinite efficiency by assuming the spheres are bosonic:

Me after solving the traveling salesman problem (I assume the salesman is omnipresent and therefore all distances are always 0):

Game devs forgetting to set up collision layers.
Game devs realising they can use these buggy non-objects to do interesting stuff in their engine
How cool, if I make a few of those things move here, they pull others like them and keep moving forever!
-- Physicists and game developers alike