Today I gave five two-year-olds their yogurt - on the floor so nobody would fall from the table - while I took the lone three-year-old around the corner to the bathroom. We were only gone a minute or two, but when we got back, the two-year-olds had made a yogurt slip-n-slide on the kitchen floor. All of the yogurt had been dumped out, and the kids were taking turns running and wiping out on the mess. Ingenious, but really hard to clean up in a house that doesn't stock paper towels for environmental reasons.