Looking back, I can see the flaws in that plan. For starters, a dive like the Hog's Head would be just the place to attract undercover Aurors. Not to mention, quite a few of the clientele would cheerfully shop their mothers to the Dementors if it'd get them out of a spot of bother. We'd have probably been better off holding the meeting somewhere out-of-the-way at Hogwarts.