rops moved 30 degrees ? hmmm. forward means towards the operator ? I wouldnt be too concerned with the ROPS . Its pretty stout materail and it did its job. Just be thankful that it didnt kill him, in fact saved his life. I am not sure IF I would like someone killed on my BX. I would inspect the base where the rops bolts to. Exactly what is letting the rops be bent 30 degrees ? the folding joint ? rop frame it self? stretched bolts or bent bolts on base of tractor ?
Before jumping on him, I'd check where its bent. Go check his deck, his garage doors. Afterall - if your sister does marry him, you be stuck with a bad cloud as a future brother in law. SO go out and gather facts and put it together the best you can. Have him help you repair it, just point out what you see is bent or scratches and just pretend you wonder and mosey on the repair. chances are his guilt will cause him to fess up, otherwise its gonna be a tough relationship with your sister boyfreind.