Drinking before an interview?

Is this okay? I’m not talking about getting noticeably drunk…just a drink or two “to take off the edge,” or whatever.

Has anybody done this before? I’m awful at formal interviews and public speaking—even though I have done a pretty good amount of the aforesaid while in school.

I was able to do the above by convincing myself that I really didn’t care…but with the job interview, I feel like that attitude would really glare…what do you think