Everyone has a “go-to” drink order, whether it’s a gin and tonic, a whiskey sour, or a Long Island iced tea. But what if your favourite drink is secretly irritating the bartender?

Business Insider spoke to three bartenders to find out what drink orders irritate them the most.

Long Island iced tea

Requesting a drink that takes a lot of time to make during a big rush is one of the most annoying things to bartenders. Two of the most complicated drinks to make are ‘real’ Long Island Iced Teas, with all four or five kinds of liquor in them, and Bloody Marys, thanks to all of their garnishes.

Mojito

If you want a bartender to hate you, order a mojito when the bar has a long line. It’s a complex cocktail that takes a long time to make and it leaves your hands all sticky.

Margarita

A margarita is super easy to make, but it totally messes up a bartender’s flow because shaking the drink for 20 seconds is annoying when you have 100 people waiting at the bar.