Motorists think? Isn't that a revelation!

Being serious for a second, I don't think you can generalise the entire motoring population. There are some who are happy to share the roads and do so in a safe and courteous manner. There are others who will resent the simple fact that someone happens to be riding a bike on "their road" and will act accordingly.

Personally, I try not to worry about what they are thinking. It's impossible to tell in the real world, so I just concentrate on doing what will make my journey safer and more pleasant.