Recently I was driving my car on a three-lane road, (Motorway/Freeway). A slow-moving vehicle meant that I needed to change lanes to get past. I checked my door mirror, it was clear so I signalled and gently changed lane, (I always change lanes carefully). Suddenly there was a motorcycle beside me making that two-finger action to his eyes then to me to indicate that I must be blind! I felt very bad about what might have been nasty if I'd changed lanes more abruptly. The bike must have been in my blind spot between the door mirror and peripheral vision.
When joining from a slip road I normally look over my shoulder to check my blind spot but while travelling at 60 plus mph I guess I rely on my mirror to follow the progress of following vehicles. The motorbike must have crept forward without me noticing. Ok, so, if an accident had happened, I would have been to blame but the bike was placing himself in a dangerous position by riding in a vehicles blind spot.
Guys, please be aware of a vehicles blind spot!