<human>: So i've recently started work in a well known pub chain. Everyone was nice and friendly for the most part and seemed to understand it was one of my first days (2nd in the pub, 1st on the bar) and had a nice joke around with me.

Until it came to one particular customer…

I was half way through serving a customer and an old man barked his order at me. I told him to hold on as I was serving someone else, finished the order and went back to the old man saying 'Was it just one pint of [insert beer] you wanted?'. At this point he started shouting at me (not even just a little bit of a raised voice, it was loud enough for the whole pub to hear) about how he was 'not deaf' and 'didn't mumble'. This shouting must have gone on for a full 10 minutes whilst i apologised and then went to pour his drink. At this point I was the only person on the bar as well so didn't really know how to handle it all, but he shut up and sat down once he had his drink.

Later he came back to the bar  and started making some very inappropriate comments suggesting a man at the end of the bar was listening to porn (why else would he have headphones in?!). He carried on making various rude comments, and then proclaiming it was ok to say these things as he was 90. Then he overstepped the mark completely by pointing to me and saying 'I bet you'd take your top off for an extra £200 an hour' and that he 'could be my agent'. At this point one of the managers, who was right beside me this time, started lecturing him about inappropriate behaviour and then went off to either talk to the other manager about him or calm down (possibly both). When she got back the old man had already left but she apologised to me for having such a bad customer on my second shift and assured me he was barred.

Summarize the given text in a few sentences.
<bot>: Customer shouted at me for not hearing his order, made lots of perverted comments and then suggested I would strip for money.