Quote from Niles in The Innkeepers
Frasier: What was that? Roz: Big blue flash. Cherries everywhere. Daphne: Lucky it didn't set off the sprinkler system. Frasier: Yes, fortunately, we have a built-in safety delay for just this sort of thing. It gives you fifteen seconds before the sprinklers... [The sprinklers start] ...kick in. Daphne: Where do I turn that off? Frasier: Right over there. Niles: I hope you're satisfied! You've thinned my brown sauce!