Slowly tastes every beer, explains at length that the kegs are at slightly the wrong temperature, and bemoans the lack of a certain obscure craft beer. Generally immediately in front of you at the bar.
A group of 15 year-olds hiding around the corner from the bar and sending their one friend who’s started to shave to order. Convinced they’re utterly undetected, but actually being tolerated with wry amusement.
4. The guy who still wants a drink 40 minutes after closing