My dad just used to tell us that some people are different to us and some people are stupid (ie small-minded people). If he ever heard any racist/bigoted comment he would make sure we knew that this behaviour and attitude was not acceptable. Maybe part of the reason I think so little of people who spout off xenophobic attitudes.

BUT we never had it directed at us. Don't have any clue there other than laughing at the person for being so stupid and saying such silly things.