1 Minnesota Jones: Careful, there'll be more traps.
1 Monty: How do you know?
2 Minnesota Jones: Traps always come in threes. Don't you know the first thing about archaeology, boy?
3 Minnesota Jones: There, what did I tell you? Careful not to step on that rake! {pointing at a rake lying on the floor}
4 Monty: {walking on past the rake} That's a trap?
4 Minnesota Jones: I never said they had to be good traps.
4 [sound]: Spang! {Prof. Jones steps on the rake and the handle flies up and hits him in the face.}

Yeah, it's a Lego broom, not a rake. But close enough. I bet some of you didn't even realise until you read this.