I've been asked "the question", but more often been asked something else:

1. TSA kid at airport looking at my camera bag in the x-ray machine: Is that a Mamiya 645? (No, it's a Hassy.) Okay, then we'll have to do a hand-search... I've always wanted to hold one of those.

2. What kind of a camera is that? (It's a Hasselblad.) What's a Hasselblad?