Every bartender has myriad pet peeves stemming from hundreds of grating customer quirks discovered during every shift. Some of these quirks are only mildly annoying, but others are downright unforgivable. If you're the kind of person who orders an Adios MF on a Sunday night or flavored vodka outside of a specialty cocktail or a Red Headed Slut on your lunch break, here are five of the most heinous bar sins for you to avoid to make your trip to the bar more pleasant for both you and your bartender. That way you can still order whatever odd thing you want, but at least you won't look like a jerk doing it.
In other words, please don't: