Paddy is booking into a guest house and looking around the reception when he notices a sign on the wall.
He asks the owner, "What time do you get in?"
The owner looks confused and says, "Well, I'm the owner, I live here. Why do you ask?"
Paddy says, "Well, on that sign there it says, 'Guests have to be in before you!' "
The owner replies, "No, you numptee! It says, 'Guests must be in