I don't see any problem as long as the bottles are sealed. How can they make you chugg a big bottle of wine or beer? Do you want you to drop tehre of alcohol poisoning.
At most they'll probably just run it through the wand.
That goes for PEPSI too!

At least I hope so.
OMNI for Greggwiggins: You have a facinating job and I think among this bunch you are going to be getting a lot of e-mails from people. I predict KOKO has already e-mailed you. Just hope Flyertalkers don't harass you for free samples!
There have been Flyertalk events organized around beer (Portland, teh dinner for the Seattle do) and other alcohol. So there are a lot of people who love beer here (I like it.)
But give an F-T event a try. Or maybe help put together some beer do for Denver in 2002. The parties are fun. The Flyers are mostly harmless.
Especially after getting beered!