Well, they didn't explain the drinks system - because I wasn't supposed (for legal reasons, I think) to be serving alcohol, so when I ended up fetching beer for diners, I didn't write it down on the pad. I didn't know there was a goddamn pad. So I ended up "giving away" quite a bit of beer. That made some folks pretty mad. In general, too, I just wasn't quick enough, and I didn't have the sixth-sense of finding something useful to do without needing to be told. Every time I finished something, I would just stand there with a "what's next ?" expression on my face, and that infuriated them.
To hell with it, though. A really tight white shirt and a bow-tie = not me.