WTF. You are supposed to do a head check while driving to clear your blindspot. One of the more scary near-hits I experienced was some idiot in a van who changed lanes without headchecking while I was in the process of rolling past on a two lane highway.
If you are not regularly checking your blindspot before changing lanes while driving, I hope we never share the same street.
You couldn't hear a dump truck driving through a nitro glycerin plant!
Badasses might screw with another badass. Nobody screws with a nut job.