Theory: Parenthood tends to make people more practical, until the kids leave home, at which point all bets are off.

A collection of Trevor Parscal's illustrated theories, some more plausible than others.
Theory: Parenthood tends to make people more practical, until the kids leave home, at which point all bets are off.
Theory: Small things that feel fast deliver more enjoyment at a lower cost than large things that are fast.