It's nearly 6 years since we adopted DS1 and yet I still find myself groping for a good response to people's daft questions. When we visit the UK, people are generally studiously polite, avoiding any reference to the obvious colour difference (DS!1 & DS2 are black, DH & I are white) but here in the Caribbean (particularly if we visit one of the smaller islands) people don't hold back. I have lost count of the number of people who pass me in the street and say with no preamble "Is that your son?" and when I say "Yes" then respond with "For true?" Sometimes I respond to the first question with "Yes, he is my adopted son" which stops the follow up questions but usually I don't cos it's none of their business. I also sometimes get the more offensive "Where did you get him/them from?" as if they came from a shop.
My main defence mechanism is that I have become deliberately deafer as time has gone on and fail to hear most of these questions.I personally prefer to avoid being directly rude back if I can, provided the daft question isn't really really rude. But I thought maybe we could swap notes on the daftest questions and bounce around some good answers that leave us and our children feeling good.