"The more complex the mind, the greater the need for the simplicity of play." - Capt. James T. Kirk, "Shore Leave," Star Trek
When he was young, one of my sons (who will remain nameless to protect his innocence) had a propensity to collect things. By ‘collect things’, I don’t mean Beanie Babies, Magic Cards, or anything resembling a cow. Rather I mean anything small, usually shiny, that he could find on the sidewalk and put in his pocket. In parent terminology: trash.