Many times I've mixed stuff like Jack Daniels, Jose Cuervo, maitais, kamakazees, screwdrivers, Smirnoff, beer, and Smirnoff Ice, and I never get sick. I never had all those at once, but like maybe a couple maitais, a couple shots of whiskey, and a beer, hopefully you get the idea. I've always been told that if you mix hard stuff with beer or malt liquor, that you throw up. Strangely this hasn't happened to me. I'm not a huge drinker most of the time, but when I go to the bar I am. I usually get smashed every 3 to 5 months, and never get a hangover or throw up, which is strange.