"Okay Skinner, that's the last time you'll slap your Willie around!" That's just one of the classic lines in Skinner's Sense of Snow - an episode from season twelve that seems to get better and better with age, with the exception of a vision of Lisa as a camel appearing (to Homer, anyway) at the end of the episode to wish everyone a Merry Christmas. Aside from that misstep, however, it's all classic Simpsons. In the episode, Springfield Elementary is the only school open during a bad snow storm just before Christmas, and the kids wind up snowed in (after having been forced to watch the horrible Grinch knock-off The Christmas That Almost Wasn't But Then Was with Skinner). Eventually, they capture Skinner and tie him up in a ball sack, but not before they consider tunneling out, only to be thwarted by their principal. In the end, Skinner sends the class hamster Nibbles for help in his ball, which pays off towards the end, when Skinner exclaims "Nibbles, chew threw my ball sack!" in the hopes of escaping. Yes, it's juvenile, but it's funny. Not "best episode ever" funny, but we're getting there!