So I said "Please don't distract him, he's working." Which is my typical line when someone does that.
The first man's dining companion said, rather rudely, "Then you shouldn't bring him in here." Like my service dog is there for their enjoyment. Um, he's a service dog, not a petting zoo.
So I said, "He's a service dog so he's allowed in here."
The first man said "Who does he service?" Which was a weird way of asking the question, but I knew what he meant.
So I said, "He's my service dog."
And then the guy said, "Why? Do you have a problem?"
Um, yes. I have a big problem with rude strangers that distract my service dog. I didn't say that but I think maybe I should have.
Instead I just said "The Americans with Disabilities Act says he is allowed in here" and walked away.
I think this is the rudest interaction I've had with a member of the public regarding my service dog.