some alters can drink till the cows come home and are fine, but then switch and another be so sick...
last christmas i had a couple glasses of strong wine punch and another came out and was so ill and somewhere in the middle of the "bowing to the porclin god" a little came out and cried and fell asleep on the floor. H said it was awful watching the switching going on and he really couldn't do anything.
needless to say, we are VERY careful with drinking.