Finally your kids graduate from High School and move off to college. You just have a few summers of them living at home yet and you're finally free! You can do all those awesome things you've seen your friends who don't have kids doing for years. But wait, what's this? After college they want to move back in? WTH??? This wasn't part of the plan! Noooooooooooooooooooooo!
And now another reason not to have kids>>