What parent hasn't had the sudden realization that it's too quiet in the house, and the kids must be up to something? This illustration depicts an actual act of mischief in which I found my boys happily engaged one summer evening. I was hollering at them and laughing at the same time.
I even took pictures.
Michael, at right, (yes, the same kid who wanted to dig to China) and Brice, left. Photos from about 1994.
If those eyes don't say "mischief", nothing does!