lol
I am absolutely impassable, FTR. I also am completely guilty here.
I feel bad every time I merge into the exit from 91 to 84 on the way back to BOS at the last second, but not bad enough to wait in line for 2 miles. Also, I make up for it by tailgating the people in front of me into going faster, so that it is better for everyone behind me.
The trick to merging or stopping a merge in stop and go, is to not make eye contact.