Heck, that could be an entire thread... Halloween tricks you could play at Collinwood. But really all those people (of any time period) have to be completely desensitized to anything "scary". Almost every day is Halloween at Collinwood. It'd have to be gag type of trick like the bucket of water over the door or something. I'd for sure put Willie or better yet Carl in charge of the pranking!!
I just have this picture in my head of Quentin walking down the hall giving a high-five to this weeks ghost as his hand passes through the ghost's hand, not spilling his drink in the other.