I've never felt comfortable with anything like deference, which has sometimes made it hard working with the public as much as I have.
At my second job I was dealing with a really posh customer who wanted to buy a lawnmower. He indicated the ones we had on display and said they might be fine for the houses nearby but weren't adequate for a property the size of the one he owned.
He wanted a sit-on mower. As he was chuntering on, another customer asked me a question. I answered the second customer, calling him 'mate'. The posh customer raised an eyebrow and said, 'I'm not your 'mate', young man.'
I looked at him and said, 'I wasn't talking to you.'