Quote from Francis in Malcolm Babysits
Francis: You were right about Lester. I checked him out. No wife, no kids. Poor guy didn't have a friend in the world. [When Francis and Stanley walk into the abandoned room with Lester's body, it's filled with a group of rowdy, drunken students] Francis: Did you tell anyone about this place? Stanley: No. Francis: Huh. Must've been me, then.