That's why I drink coffee at release parties.
I sometimes drink green tea when I am manning tasting room, but in this case I had to go to a release at a local pub in which we brewed them 2 proprietary beers (a 60/- and a Wee Heavy). I talked my way out of wearing the kilt but was expected to drink the beer (and, yes, I had to pay for them).
The pub (located in Hunstville and on the "top 100 USA" pub lists, believe it or not) has done a lot to help us over the years and this was kind of a way to return the favor. So I wasn't going to got here and drink water or coffee. That's bad business.