General Discussion

and likely will never be attempted, but we know that they can't stand being ridiculed or looked at as fools.

If there are at least two of you in the booth, what if you agreed ahead of time that when they come in there with their bullshit, you start with a look at each other and a smile and soft chuckle and no response. They get mad. You laugh a bit more, do not speak. They get madder. You guffaw, start holding your finger up with the "just a minute, give me a minute" while whooping, both of you. Then settle down with an "Oh my god" from laughing so hard. If they are still there (and, say, haven't punched you (maybe have a third person there with a camera...), apologize, ask what were they saying, and then it all starts again from a small chuckle.

Yeah...could be dangerous, but could be fun and effective.

Or don't.