I can't see a problem, it's only a bloody trailer. No way would I let someone use it until I gave it a good shakedown, but then I'd lend it to people I trust and know would respect the trailer, and repair any damage.
As for people who I don't have that level of trust, I'd just say something along the line of "Sorry, if something went wrong beyond your control, I'd feel guilty, and if you did something to it, I'd have to kill you.
But then again, if our CT cost as much as a new car, I might feel different.
I guess it boils down the quality of your friends, which also reflects on you.
Cheers.