I've come upon two horrific semi crashes. First one guy was hauling a gravel elevator down I 90 up by the dells and there was an accident ahead traffic slowed and the semi behind that elevator couldn't stop fast enough and that elevator went right thru the divers side windshield and out the sleeper, killing the driver. The other was on i94 between Milwaukee and Madison a truck went off the road at a high rate of speed up a hill and wedged his rig under the over pass at the angled part. He had hit it so hard it wedged in there to the sleeper of the tractor and they had to shut that over pass down till spring to the build everything. My haterade began my freshman year of high school tho, my dad road his bike to work into condition for hunting trips he was struck by a semi and launched 60' Broke his shoulder neck and a few other things, was in icu for a week hospital for a month. His bicycle helmet saved his life there was a baseball sized chunk taken outta the back of it. I to this day believe the driver was asleep at the wheel, he claimed he didn't see my dad but he road with a marine strob (from sportsmans guide) on his bike so traffic could see him in the morning hours.