Haha, that pre-bed burst of energy where you get more done in an hour than you did most of the day, and then get to go lie in bed with your mind racing about everything you were going to do and will definitely do tomorrow instead of sleeping, and then feel guilty for not being able to stick to the schedule people are asking you to and that your life demands, yeah that shit is the best.
When your kid runs at you to give you the most enthusiastic hug of your life just because.