My daughter has an issue with never wanting to go to bed. Tonight, after telling me she had been taking an eye injury to stay up, she then asked me to put one of her programs on TV. As a reasonable father, I pointed out that it was already an hour and a half past her bed time. She looked me in the eye and said, "you're as mean as a bulldog."
Of course, not two minutes later, she gave me a very chipper "I love you!" So who knows?