For their own good, vegetarians should never be allowed near fine beers and ales. It will only make them loud and belligerent, and they lack the physical strength and aggressive nature to back up any drunken assertions.
Even on the Serengeti, it ain't a barbecue if there ain't some kind of beer.
When dealing with complex transportation issues, the best thing to do is pull up with a cold beer and let somebody else figure it out.