Driving home from work at 7pm on a dual carriageway. I'm in the inside lane doing about 50ish a few car lengths behind another car. I check my mirrors before going for an overtake and there's a car coming up fast in the outside lane so I wait. As the overtakee passes I check my blind spot to make sure its clear behind him and suddenly he's slammed his brakes on.
I quickly look forward again and the car in front of me in my lane has swerved into the outside lane to avoid a cyclist that he hasn't seen until the last instant. Up until this point I had no idea there was a cyclist on the road ahead of me and I had about a second to react.
I occasionally see cyclists using this road and generally they're well lit up and I've spotted them from 100's of metres away. This guy was all in black apart from a scruffy high viz tabard that was no longer high viz and a barely functioning rear light. The car in front of me obviously didn't spot him until the last second and had obscured my view of him. I'd like to think if that car hadn't been there I would have spotted him in plenty of time but who knows.
I was within a second of ruining several lives and I'm not sure what, if anything, I did wrong.