Well at least the day before the tourny many of them may be. Actually the Ref accessors who come to town, about 10 or so this year, drink a hell of a lot more than the actual refs. I bet there are about 1/3 who drink moderately, 1/3 who drink occasionally, and then 1/3 who don't drink at all. And of course there are the one or two who push the limit, but they are rare in this group. Everyone takes it pretty seriously. The Beer is mostly Guinness and Bass which is not cheap.
The blind part is probably more true.