This may be standard across the bar industry, but this bartender in Nashville has gone viral for adding 20% tip to every tab that was walked out on at the end of the night.

People all around the internet are learning that this is something that is not only allowed but fairly common across the bar industry.

No, don’t be like these 300+ people who walked out without closing out their tab, but if you are, just know you may be tipping more than you intended.