Best way to tire out a 4 year old? Have 'em swim for 3 hours straight. The kid will fall asleep sitting up with the TV blaring and people talking around him. Here's proof:

1. I'm watching cartoons, but I'll just close my eyes for one little minute....

2. I'll just lean forward a bit....

3. No, maybe backwards is better....

4. Mayday! Mayday!

5. Crash landing...