My father absolutely hated being called "driver" by people on the bus because he felt that the way they said it equated him to some kind of chauffeur.
I always try to be as well mannered as I can be because I think it's a decent thing to do and that everyone should do their utmost to be polite and be appreciative of kind gestures that people do for them and it does grate on my nerves when people don't act politely. I always give up my seat on the bus for older people but don't often get thanked for it. The other day I'd given up my seat and was standing and the bus braked. The woman behind me didn't bother to hold on properly and so knocked straight into me, causing me to lose my grip and be knocked over by her. I didn't even get a word of apology.