There’s a blind retail employee at my local Apple Store. He’s been there for years. I knew that it’d end up taking a few extra minutes to buy whatever when working with him, but it never pissed me off. I appreciated how hard he tried and admired the fact that he’d even be willing to work in a loud, crowded Apple store. Plus, he had a really sweet dog with him who was very friendly.
Maybe it would be harder with a deaf person vs. blind. Maybe I’m just an outlier here. Dunno.