I've had two recent cases of cars attempting to join the dual carriageway as I was driving along in the left lane. They both seemed to expect, and try to force me to move into the right hand lane to let them in. In both cases the right hand lane was occupied. Have others here had the same thing happen? My understanding is that they need to give way to me...is that correct? I stopped both cars and attempted to chat to the drivers, but they didn't seem to want to chat, I wonder why? The first car was a couple in their late 50s, man driving. Their car was full of holiday stuff, blocking his visibility, but I'm sure his driver's side mirror was still working. The second case involved a very rude mother who gave the 'anchor' sign with her hand. She risked the lives of her children in that manoeuvre, which is appalling. Anyway, I'm sure this won't be the last incident like this, but what to do about it? I don't appreciate having my life endangered like this.