Actually there is more to it than that. That group, or within that subculture,usually the ghettoized lower class ones, as another commenter posted they will play games with the waiter/bartender and its a game for them all.
They’ll ask for the ketchup, you get the ketchup, then immediately they want the A1 sauce, you get that, then they want a toothpick or ‘whatever they can think of that you have’. They will run you! and you are running back and forth from their table. Frequently as part of the game,at the end of the night at or near payment time, they will complain also about something, their food or drink. And guaranteed these people will leave Zero tip. And its all their game on you!
I've walked out of places because "people" that were seated after me would be served first and I could not even get a glass of water because of " the game".
You are right about it being a game. BUT servers are wise to the game. Let me just say...I would not want to eat food that is delivered to their table; if you get my drift.
I am always extremely careful not to make my server mad at me.