Zombies:  a 1 long wall; a 0.1 wide hole in the wall; in 1 hour, every second a
zombie arrives in a completely random position of the wall; the distribution of
the number of zombies that pass through the hole in 60 sec.
4, 4, 10, 13, 15, 13, 10, 4, 8, 2, 1, 0, 1
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The Poisson distribution (with the same mean: M = 4.47)
n → Mn·exp(-M)/n!   (remarks)