On the mission where you have to assasinate Lebedev in the airport, when you finally get to him on the airplane you start a conversation, but are interrupted midway by your fellow agent Anna something, who proceeds to kill Lebedev. Well since this wasn't my first playthrough, I knew where the whole thing was headed so I decided to plant some LAMS on the approach to see what would happen.

And what did happen was one of the funniest scenes in a video game. You hear Anna's footsteps, the camera angle change from the dialogue-style camera to a zoom out, and JC turns to the hallway she is coming from. LAMs go off, Anna lets out a scream, JC turns right back to Lebedev and just continues chatting as if it was some type of minor disturbance

I must have laughed for a good 10 minutes or so