As a truck driver, I've had a few close calls. One of the scariest was because on a load that wasn't secured right in the trailer. I was carrying about 45K lbs. of steel wire. I was approaching an intersection and the light went yellow. The trucks were loaded so that in the nose, there were about 10 spools of the wire and then a big space then an I-beam chained to two D-rings in the floor and then 10 more coils. The I-beam is supposed to keep the load from shifting. The problem this day is that the loaders didn't put the bar in. So, when I jammed on the brakes, and got stopped in time, about 22K lbs of wire slid forward about 18 feet and slammed into the nose of the trailer, pushing me out partway into the intersection. I was very glad there wasn't a car in front of me.
I will say I'm glad that some states now have laws about not cutting back into traffic too close in front of a truck because that happens all the time. Someone cuts around a truck and comes back in front of him way too close, then jams on their brakes because of stopped traffic.
I am very glad all of you are okay. I know it's a scary thing to see "Peterbilt" getting bigger and bigger in your mirror.
Everyone, I know there are some dumbass truckers out there...but remember, we generally are some of the safest drivers out there. Because of the size of the rig and the physics involved, when someone messes up, it's usually pretty spectacular...but they are the exception - not the rule.