“We take people to several levels this year, raising people up off the ground, and putting stuff over their head,” says Kerr. “We even take people on an elevator ride. … We’re trying to scare people from different levels—kind of getting away from just a guy jumping away and saying “boo”—which still does work, though. Too much of that is too much of that, and changing isn’t always better, but we try to embrace the things that still work and the things that people do expect. … Nothing’s worse than going to see your favorite singer and he doesn’t do your favorite song, just because everyone’s already heard it.”
And then there's this:
“We have had good reactions over the years,” says Trader. “Just about any bodily fluid that can be expelled, has been.”
For that reason, he recommends going to the bathroom before entering, and maybe not eating or drinking immediately beforehand.
“Just for our sakes, we hate to have to shut down to clean,” says Trader."