I am always a 20% tipper, and sometimes more, when I am actually having a person taking multiple drink, appetizer, meal, and more drink orders, over the course of an hour or two. That same level of gratuity does not and should not apply to every time you get food/beverage. Honestly, the people making my burrito at Chipotle deserve more of a tip than a bartender handing someone a $500 bottle of liquor and some glasses.Dude should've been grateful for anything when all he did was hand him a bottle, everyone who has worked in the area knows the proper tip for a drink or a bottle at a bar isn't the same thing. Instead he took to twitter to complain, calling out one of their NBA clients, likely costing them a wealthy customer and possibly thousands all over 13 bucks. For one putting people on blast for their tips shouldn't be allowed, even worse to publicly shame rich clients (which his wealth shouldn't matter), but either way I hope he gets fired for that. The whole percentage thing about tips is dumb and makes no sense for this very reason anyways. The only crime by Dre here is his math skills.