My nephew during his first week of having a licence hit a 25" tube TV someone dropped in the fast lane. He was ok, lots of damage to the Honda.
A few weeks ago I went to Home Depot. The driveway comming out is a bit uphill to the street and has a signal. Guy with a truck was parked on the hill going out. Behind his truck was a pile of hardi backer and tile, with some sheets of hardi backer still in the bed. He had loaded it with the tailgate down, tied some string over the top, and was depending on friction to keep it from sliding. The hill combined with acclerating from a stop relieved him of his load. Fortunately no one was behind him, and it did not happen on the road.