I was going over the Coast Meridian Overpass last week, when I tried to change lanes. I checked all my mirrors, and glanced over my shoulder as I started to merge over. There was a car in my blind spot. I had to swerve back into my lane to avoid an accident. An accident that would have been 100% my fault. I felt somewhat grounded after making this obvious error. Of all the mistakes and near accidents I've witnessed since driving, that frustrate me to no end, and actually I can make an honest mistake too. Btw, sorry older lady in the blue car, but congrats, you give a wicked dirty look.