I heard this one from my step dad and you bet your ass had I been there the shit would have stop immediately.
My step dad is blind in his right eye. so: sd=step dad
My mom, SD, my sister and her husband were in some restaurant at the grand canyon when this took place:
My SD was still eating when this pushy waiter came up and just grabbed his plate!
SD: Wait, I'm still finishing that. (not said in any kind of mean voice just genuine surprise)
SW: Sucky waiter: Well EXCUSE me! I was standing there forever!
I'm blind in that eye, I didn't see you.
So for the rest of the meal the waiter gets that snarky attitude and everytime he got near SD he'd yell: I'm. right. here!!! Or he'd get over exaggerated with announcing his presence and going over the top to the point of assholic-ness.
My family--they are what I am not. Passive. They will NOT say anything to make the abuse stop. In fact my sister later attacked my SD for saying that he was blind! It's true but she took it as him being rude!
I would have demanded a manager and politely asked for a different waiter. You can't be an asshole to someone who can't see! There were better ways to go about it.