Quote from Niles in Burying a Grudge
Niles: Oh God, I'm due back with Maris. Oh, if anyone needs me, I'll be sleeping at the hospital tonight. Frasier: Why? Niles: Maris's doctor feels it's more soothing for the patient to duplicate the home environment as closely as possible. So I slipped a pearl-handed revolver under her pillow and got myself a room across the hall.