Originally Posted by
semaj
Sounds like that was your fault. Swerving in any situation is bad. This is the reason why I always check my immediate surroundings before changing my line in any situation--it's basic etiquette in my opinion. If you didn't see it until the last minute, then learning to look up further ahead instead of directly in front would help.
I have to agree on that one!

... If I'm on a bikelane, approach glass, I look back to make sure that there aren't any vehicles approaching before I swerve out into the road. Same with the trail!