Poor Word Choice

Guy #1: I just left a major deposit sitting in that toilet.
Guy #2: You didn’t flush it?
Guy #1: It was an automatic flusher and nothing happened. There was a guy waiting to go in and I just gave him a shit-eating grin when I walked out. I mean, what am I supposed to do?
Guy #2: I wouldn’t use the term “shit-eating grin” the next time you tell that story.

–Penn Station