Why in the world do my kids have good behavior/play well/listen leading up to bedtime, but they struggle to do that during the day?! They will go off and play super well together, when they should be getting ready for bed but then it makes it hard to break up such a good thing. Are my kids the only ones with this strange behavior? Shouldn't they be grumpy and exhausted at the end of the day vs the morning and throughout the day?