Dangerous Drivers

I was on the 99 heading South and taking the 58 East off ramp... At the very last moment, someone from 2 lanes to the left decided they also needed that off ramp...  Now we've all seen this a million times and some of us have done it.. Swerved to the right across 2-3 lanes only to clip the dirt that we're not suppose to be on..  But today is was an ENTIRE SEMI TRUCK!!!  Seriously people???  A number of things could have gone wrong with this situation.. starting with the size of the truck, the speed, etc.. not a good idea...    and all right in front of us (me & kids)..