Had the same fear as you for a bit, and let me tell you that if a bat was anywhere near you, you’d know. As stated many times, they’re not ninjas, if it was under the table, it would’ve been found by people at your gathering. This is especially the case if it was rabid because rabid bats start to have a lot of difficulty flying and therefore stay put. That’s why victims of rabid bats usually find the bat in their room after waking up. Not only this but if a bat bit you, you’d known. The whole point of the rabies virus is to spread itself, and so if the bat saw no reaction from biting you, it would’ve kept biting. You don’t have rabies, don’t even waste your time worrying about it. It’s a scary disease and that’s exactly why you’re being so irrational about the situation, trust me, I went through the same thing. Good luck!