You Need RV Repairs?

A friend of my husband owns an rv. When he needed rv repairs he called my husband to help him out instead of calling somebody else. My hubby is a mechanical engineer and his friend probably thought that my husband could fix the problem. When I asked my husband about it he said that there was no serious problem to be fixed. His friend just wanted to get my hubby's ideas about how to mount a bike rack on the back of his rv.