Deactivating a generator loop without the correct key is like repairing a watch with a hammer and chisel. One false move and you'll never tell time again. -- The Doctor, Doctor Who: Pyramids of Mars
This year’s last installment of IT comes with my greetings for the season. Here, in this most festive of seasons, is a picture I took at Six Flags America a year or so ago, which I think summarizes the spirit of the holidays: