Hans Gruber: I thought I told all of you, I want radio silence until further... John McClane: Ooooh, I'm very sorry Hans. I didn't get that message. Maybe you should've put it on the bulletin board. I figured since I've waxed Tony and Marco and his friend here, I figured you and Karl and Franco might be a little lonely, so I wanted to give you a call. Karl: How does he know so much about th... Hans Gruber: That's very kind of you. I assume you are our mysterious party crasher. You are most troublesome, for a security guard. John McClane: Eeeh! Sorry Hans, wrong guess. Would you like to go for Double Jeopardy where the scores can really change? Whoa, these are very bad for you. Hans Gruber: Who are you then? John McClane: Just a fly in the ointment, Hans. The monkey in the wrench. The pain in the ass.
McClane interrupts Gruber's conversation with Karl by calling him on the radio.