I have never had a door open on me but I have had asshats block me or try to more than a few times. I had one guy go all the way on to the shoulder to block me one time in stopped traffic on the turnpike and I was only trying to get about a quarter mile to the next exit that I could see. If someone was to ever hit me on purpose they better hope I do not get up because I will also get arrested for smashing in their face in with my helmet.