And there's also this concept called, "Sunday morning, baby woke Daddy up at 5:30 AM, Daddy didn't get much sleep, Daddy is a bit slow." And there's also this concept called, "Daddy is a bit grumpy due to said lack of sleep, so everyone stop picking on him."
Been on that particular ride way too many times.

Happy Fathers' Day Ubik and to all the Trek Dads out there.
