I wanted to add that, towards the end of the conversation even he admitted that:

1.) There's no way it could be self-mutilation. It's not possible for him to bite that area.

2.) It wouldn't have been that big of a deal had the receiptionist told him I was coming and that he was going to "yell" (whether that was figurative or not, I don't know) at ___ tomorrow morning.

I'm a little hesitant to burn my bridges because I'm waiting for the results of the culture. I don't know what to do.