I agree laugh it off. I actually have never had a stranger ask to use my camera. It sounds like I am not alone here when I say this.. "The camera is my baby if any one hurts it I will have to hurt them" Not really but the idea is true. I have to remind myself that since my husband was kind enough to buy me the camera I should let him use it. So keep reminding myself when he wants it that I need to let him use it and also teach him how to use it instead of being my pack mule and idea man.
He is a good sport about it though.
Got to love him! My sister-in-law has the same rule as I do. You can borrow my film camera and lens but not the digital SLR. That's my baby!