The last game I played was L.A. Noire... so I'd probably politely refuse by explaining to Detective Phelps that I don't go that way, only to have him decide to doubt me because I, somewhat nervous at being propositioned by not only a fictional character, but a fictional MALE character, probably looked around the room while I was replying. Perhaps when the "you screwed up" flousish sounded, and the question promptly crossed itself off his notebook, he would get the idea?