Dirty Scumbags.
I suppose that if you go to a Personal Trainer & they make you do an exercise that causes serious injury, it would be your fault too?
I hope all is as well as can be in the household Muz (that kit may have to wait a bit, eh?)
I have said it before, but best of luck in the courts, I really do hope it ends up going your way.
If you do get the opportunity to do so, make them touch their toes and use a cactus.
I would be surprised if there is, but if there is anything I can do, just ask.