Tell me about it, those little rule fights just suck all the fun right out of the room. It turns a chill night into this weird homework session where everyone's digging through the rulebook. What works for my group is having one person check the book quick before anyone starts arguing. If it's not clear in two minutes, we make a temporary call and keep playing. Looking it up later is always better than letting the whole game night stop dead.
Last weekend at our game table, I was the one holding up the game because I misread a card. Isn't it funny how the person who causes the problem is always the last to admit it? What if we just picked a rule and stuck with it for the night? My group now uses a timer, and if we can't agree in two minutes, we vote. It saves so much time and keeps the mood light.