A bus is stopped picking people up on a narrow road, cars qued up behind it, side turning on the right opposite the bus. I filter to the front but wait behind the first car as it's jutting out at an angle into the oncoming lane, indicating right. They can't see far enough round the bus however, so they wait there. The bus moves off, the car in front straightens up to follow the bus and I can see the other side of the road is clear. I proceed to overtake them both but just as I pass the front wing of the car it swerves right down the side road
If I'd been a second late, not gone as wide onto the other side of the road to make the overtake or not been as prompt as I was, I'd have been taken out. As the car was indicating I'd probably be found partly if not entirely to blame and if I'm honest, deservidly so too.
I'd like to think I'm a fairly good at judging what people are going to do on the road and it's been a while since I've gotten it wrong, but I think this was a useful lesson for me. Yes it's common sense, but I was in need of a reminder - Never put yourself in a position where a wrong assumption about someones actions will result in you getting knocked off!