It has been said that idleness is the parent of mischief, which is very true; but mischief itself is merely an attempt to escape from the dreary vacuum of idleness.
Bio: Anatoli Nikolaevich Boukreev was a Russian Kazakhstani mountaineer who made ascents of 10 of the 14 eight-thousander peaks, i.e., peaks above 8,000 m, without supplemental oxygen.