Oh man I don't enjoy being that guy right now but for the love of all, It's CUSTOMERS. Costumers are people who work in dress-up.
I've only seen this in the past few years, but it's become such a common mistake. I don't understand it.
Sorry, I mean you're making a salient point about the lack of a license and all. Even so, if he's been caring for the squirrel domestically for seven years, where do they think the supposed rabies would have come from? It doesn't just manifest.

Solid advice. It can be completely benign, but people will still pounce on it for an "easy win".