the good news is that the bike morons usually just kill themselves.
however I once saw a bike go through an intersection at probably 100 mph in a 40 mph zone…and when I say ‘through the intersection’ that’s not accurate. Someone turning left in front of him didn’t realise how fast he was coming and went. The bike basically cut the car in half, killing the passenger instantly (and the biker himself). The driver was VERY fucked up and barely lived, but not ‘lived’…basically a vegetable.
It was pretty crazy. I was 10 at my mom’s work, and watched it all happen from her office window. the bike (or part of it) went about 30 feet in the air on impact. The car was instantly opened up like it was made of tinfoil.