A: I can't unlock the door!
B: Maybe it's because the key is brand new.
A: The lock won't turn at all!
B: Are you sure the key is not upside down?
A: I've flipped it five times!
B: It still doesn't work?
A: No! The door is still locked.
B: Let me try to open it.
A: Maybe you'll have better luck.
B: I see what the problem is. You're using your old key!
A: Oops! I'm so used to my old house.
B: It's alright; eventually you'll get used to this one.