I think I might be an idiot driver myself, so watch out for me, too. The other day I nearly wiped out a guy on a bike. I made a right turn on a green light, quite correctly turning into the right lane. I made a mirror check to move into the left lane, saw an open lane and made a final over-the-shoulder check, only to discover a cyclist in the left lane, directly beside me. I had no idea he was there, and I still don't know why he was in that lane, why I hadn't seen him before, or where he came from. If I'd done what a lot of drivers do -- turn directly into the left lane -- I probably would have killed the guy. It would have been my fault, I guess, but he still would be dead. So do drivers and yourself a favor: be ready for driver's errors, stay out of their blind spots, and don't turn up in weird and surprising places.