Each of seven dwarfs has his own bed in a common dormitory. Every night, they retire to bed one at a time, always in the same sequential order. On a particular evening, the youngest dwarf, who always retires first, has had too much to drink. He randomly chooses one of the seven beds to fall asleep on. As each of the other dwarfs retires, he chooses his own bed if it is not occupied, and otherwise randomly chooses another unoccupied bed. Use computer simulation to find for k = 1, 2,..., 7 the probability that the kth dwarf to retire can sleep in his own bed. This variant of the lost boarding pass puzzle is due to the Danish mathematician Henning Makholm.