a random act of driving belligerence

[midnight armadillo]

So this morning I merged onto 95N and wanted to get out of the rightmost lane. I put my blinker on, see a gap in front of an old Camaro, but before I can turn the guy accelerates to cut me off. Fine, whatever. But then he sits slightly ahead of me in his lane for a few seconds, watching me in his side mirror, just to prevent me from pulling in behind him. Seriously, WTF? Why, oh why, do people intentionally drive like such friggin shitheads on the road for no good reason?