A road traffic accident is not the same as coming up against an obstruction caused by protesters and there would not be the same element of the unexpected if you were unlucky enough to encounter one. By the way, I passed my driving test 53 years ago and one golden rule learned from my dad (who taught me to drive) I've never forgotten is that if you ram into someone from behind IT'S YOUR FAULT EVERY TIME. Not the guy in front, no matter what unexpected or capricious thing he did, not a protester, not a cow on the road... As I said, the Daily Mailism don't cut it here. By the way, I haven't been rude to you, so consider desisting from the name-calling (which tends to make you look a little like a loser...)