The SIL says he's going to hook it up and try pulling a long grade before he gives up on it. That, hopefully, dissuades him from using that toy as a tow vehicle. Then there's the 2-80 pound dogs, the twins, and 2 adults in a 21' trailer for a month thing they'll be dealing with. This all started because of Covid. They decided to take the opportunity to travel, with the twins being home schooled for the foreseeable future, for a month. They were tent camping before they ended up in my 5th wheel on weekend.
Yes, I offered the use of my truck and trailer. They were worried about the dogs tearing stuff up...LOL. And, yes, I offered to babysit HIS dogs. I think he might have worried the dogs wouldn't want to go home when they returned (their yard is 20'X 50'....Mine's a half acre, with wildlife galore).
Well, we'll see what happens soon.