Love the post :D! For me my final weapon is judging someone, but it is more from an authority point of view. It means like a teacher or father figure.

Once that happens though, hell will break loose and people will truly have a bad time ^^.

But people really need to go far for that to happen, everyone is indeed different and have their points of view/ideas.

I also always try to look past the person and think about the idea that they are sharing and the emotion locked to it, shows how much it is worth to them.
This way you really also get open discussions and it brings a very deep connection between the 2 of you. (or more people) + you learn a hell lot about it and each other.