This happened some years ago. I was working as a veterinary technician when they pulled me into my manager's office. They said they were firing me for abusing a patient. When I asked about details, it comes out that the incident happened there on my day off. I had zero to do with it. I pointed this out and was told “Sorry, but the decision has been made.” Honestly, it was a blessing in disguise.
They went out of business two years later.