Yeah, but haven't you been cut off like that (within inches) when going a wee bit, or a lot bit, faster? I have, particularly when some idiot is afraid they'll miss their exit, but won't just slow down to fall behind me. What's stunningly stupid about this accident is that with Peggy's husband doing 55, the other driver could have passed him easily with plenty of room. It was simply an act of aggression, a "punishment". This chucklehead is probably one of those who, when encountering a car in the fast lane, will ride right up on their bumper in an attempt to make them go faster. The "slow" car could be doing 75, doesn't matter. Rather than pass on the right, or maybe tap high beams and horn and see if maybe they'll yield to the right, these drivers use their vehicle to threaten others, often with bad results.
Speaking of which, of course the driver behind was following way closer than necessary... it is amazing how many people think that being three feet behind another car will get you where you're going sooner, regardless of how slow you're both going.