If I have one beer it ruins my whole game....seriously. Then I go home and sleep for the rest of the day 
i got a friend, he grew up down the street from me and we started golfing at the same age.. hes about as good as me/im about as good as him... we both shoot around mid 80's now... and we both shot low 80s when we were young... but this kid, without any practice, when he gets a couple beers in him he is ALWAYS low 70's.. its nuts