runaway trailer

[Reg]

Theorem;
People casually borrow trucks and hook 10 or 12K trailers to them.
MANY 1/2 and 3/4 ton trucks only have a ball on the back to take a small boat to the lake or a utility trailer to the dump.
2 & 5/16 coupler fits(all TOO easily) over a 2 inch ball and with some tongue load probably looks as if it won't come off.

Evidence;
These incidents and other reports on other forums where horse trailers have mysteriously become detached from their tow vehicles.

Solution;
Left to the reader...

 

[stayalert]

a) low (or negative ) tongue weight is asking for trouble.

b) using a 2" ball for a larger coupler is also asking for trouble

there's no excuse for some of the things we see from time to time on the road....but we still see them.

 

[TOMDUALLY]

I was going to chappell tractor today and got into a bit of a traffic jam.When I got up to the cause I snapped a phone pic,
http://i147.photobucket.com/albums/r287/257nh/0428081347a.jpg
I didn't even see the tow vehicle but when I got past it I looked back and there was a kubota still chained to the trailer.

I can not see a coupler on the trailer tounge, looks as if it just broke off at point of the 'v'.