Don't ever tell someone off on your way to an interview because there may be a chance the guy is your interviewer. True story, and it happened in London.

A man was traveling on a London subway when another man got in his way and blocked him. So he shoved the man and spewed a few choice profanities before making his way onto the subway.

Unfortunately for him, the man he shoved was the person he was interviewing with just minutes later. Luckily for him,the interviewer started the interview by asking how his commute there was and they laughed it off. The man apologized, but that might not have been enough since the job is still available.