[Padgett]

I had one happen on an Interstate in Ohio while pulling a 3,000 lb race car on a friend's tandem axle trailer. Hitch assmbly on the trailer sheared off.

Fortunately the safety chains were mounted farther back and held. Nestled the spoiler into the rear door of the van and got stopped on the shoulder. Had visions of an expasnion joint incident the whole time so pulled onto the shoulder ASAP. Was a long time ago but the type of thing you remember.