I don't know that I get any stupid questions when stopped briefly. When stopped for the night I have occasionally heard "Aren't you soaked?" or some variation on their assumption that sleeping in a tent equals getting wet. Or maybe their assumption is because I arrive on a motorcycle. I don't have a comeback or ready explanation either; people camping in RVs or trailers may have gotten wet and remain suspicious of tents. I have had people tell me that riding in the rain is like riding on an ice rink. Not exactly a question. I'm not sure that I can convince them otherwise either.