I'm also with the others on not doing that with the tequila shot. How many time have we drunks puked on booze? It means NOTHING, yes, puking is unpleasant but when it's linked to drinking, it just doesn't seem that bad..think about the times you've had food poisoning from eating something - you shiver with a distant memory of how nasty it was. Now, gagging/puking from booze is par for the course for we drinkers, it's amazing how you can push it to the back of your mind. That's how powerful it is.
Have you watched Rain in My Heart? You can find it on You Tube in 10 parts. If you haven't seen it yet, please do. It will be the most valuable 90 minutes of your life.