Lately, my body has been banging its spoon on its high chair, screaming at me, "No! I won't sleep! I won't! I won't! I won't!" Exercise, no exercise, it makes no difference. Caffeine doesn't seem to be the issue, either. I'm just having to work through my body's sleep-related Terrible Twos.
Or something like that.
I was very blessed. My kids very rarely threw fits in stores. Of course, if they did, it went badly for them.