You break it, you buy it -- assuming we can catch you.

A favorite of mine: a woman and her threeish daughter were in a drug store, and the daughter grabbed at something on a shelf, knocking it over and making a heck of a mess. The mother gaped at the mess for a moment and then grabbed her child's hand roughly, dragging her toward the exit and saying, "Okay, that's it. Let's go. Come on. Come on." Way to avoid responsibility!