Sometimes humor really is the best approach. I'm including, below, an excerpt from a conversation that took place over dinner with some folks on Monday evening.
MIL (explaining to the Grandmother-in-law's friends what I do for work): she gets interviewed for TV alot, you know whenever something happens involving Muslims. Like when the guy tried to blow up the plan with the bomb in his underwear, she was interviewed for that.
80 something elderly white lady: oh! Do you know a lot of men who walk around with bombs in their underwear?
Me: no, not exactly. Since the wedding I don't really go around checking into random men's underwear anymore.