Quote from Barney in No Questions Asked
Barney: [on the phone] Fine, I'll delete the text. But how am I supposed to get into Lily's room? Marshall: Easy. The lock on her door is busted... Barney: Air ducts. Marshall: What? Barney: I'll use the system of air ducts to get into her room, just like the bad guy in Die Hard. Marshall: Barney, Bruce Willis is not the bad guy in Die... Not important. The point is, the door is not lock... Barney: Call you when it's done. [hangs up] Robin: Anyway, I was saying, we need to be better about talking before doing stuff. Barney: Can't talk. Doing stuff.