Bart: And then he raked me across the chest! And the weirdest thing
was, it was that school janitor who mysteriously disappeared:
Lisa: [gasps] Oh my God! Bart, Groundskeeper Willy was in my
nightmare too! [holds open hand] But he got me with hedge
[her hair is missing two spikes]
Nelson: [gleaming] He ran his floor buffer over me.
Skinner: [walking up, chuckling] Children, I couldn't help monitoring
your conversation. There's no mystery about Willy. Why, he --
simply disappeared. Now, let's have no more curiosity about
this bizarre cover-up.
-- Exit Skinner, "Treehouse of Horror VI"