mixed shots are often times layered which does take up a little bit of time, but mixed drinks, like a painkiller, or frozen drinks, like a mudslide or bushwacker are also time consuming--often times it is just the preception. BUT!! With shots, you can get drunker faster if you don't watch your consumption--when you're with a group, it could spell trouble real fast. But again, you can get real drunk on single liquor shots just as well, so really the point is moot.