Granted, I stole this old Army joke about placing a private in a an empty room with three ball bearings. In some ways, it’s eerily accurate. Unsupervised privates seem to make a mess of almost anything in their vicinity, then deny any knowledge of how it got that way. They are basically like little kids.
UPDATED VERSION:
It’s been a few years since I first published this panel, and I felt it needed a bit of a brushing up. Here’s a link to the newer version’s page.