I beg your pardon, Watson?!

Me: So you're invited to an interview! She: No shit, Sherlock. Me: Gee, thanks. She: Sorry. Damn, I just say that without thinking. Remind me not to say it during the interview. Me: I will. It might give the wrong impression. She: 'I have to say you have an impressive resumé.' - 'No shit, Sherlock!' Me: ...that would probably not go down well. She: No shit, Sherlock.