I bet it was being towed by a Jeep.
The massive power put out by Jeeps will do that in no time flat.
The torque will just stress ya balls until they're busted.
If ya wanna remain safe, buy a Patrol or a Cruiser...... No Ball Busting Will Happen Then.
lol.....yep would've been a Jeep owner.
On a more serious note, it's a timely reminder to all. For several years now, I check my tow balls every 6months. Yes I have two, one for the boat and one for the CT. Always Scrubbing any road grime off, loosening then retightening. I actually think with all my years of learning you just can't be too careful in this area.
Those towers that just travel along thinking it'll be all right, BAM, one day you find the nut has come loose or that dreaded rusty cancer has set in.
In my books, the more attention you pay to this area, the longer you'll be on this earth.