Are they stupid or just ignorant? I came onto the M4 at junction 12 last night when it was pitch black, a mile or so down the road I went to go into the outside lane and almost drove into someone. Only noticed them due to the silhouette of the car in my blindspot. Only the DRLs were on which I hadn't seen initially. I came off at junction 15 slightly ahead of the car and it still didn't have proper lights on despite a lot of people flashing him. How there wasn't an accident is beyond me.