Have you been officially charged with something? Sounds like you would need a Criminal Attorney if you have been charged...otherwise, report the incident to the company your wife works for, notify their insurance company and they will handle it from there.
This is for general purposes only and does not establish an attorney-client relationship.
I agree with Mr. Dimian -- alert the insurance carrier about the situation.
In no way am I offering you legal advice, and in no way has my comment created an attorney-client relationship. You are not to rely upon my note above in any way, but insted need to sit down with counsel and share all relevant facts before receiving fully-informed legal advice. If you want to be completely sure of your rights, you must sit down with an experienced criminal defense attorney to be fully aware of your rights.
I would hope that the owner would have liability insurance, and if so, as the others have suggested, notify them immediately. If there are any security camera's, those should confirm what happened. I would be very careful staying at a facility where you feel you are inadequately trained. That can only lead to further problems.
Contact a local attorney and the management/ownership of the home. Good luck1
Without meeting with you, and knowing all the facts and circumstances of your case, my opinion is not to be construed as legal advice, just general educational information.