They’ll use our cannon-balls

With people who’ve got personal issues with each other, we give our opinion in the presence of both of them, so that neither of them can take what we say for their own benefit and use it as heavy artillery (if what we say carries any weight) in order to blast his opponent, enlisting us to load the cannons, while we’re at it. The best thing is, as far as you can, to avoid people like that, in order to preserve your peace and pray for their peace and for the peace of the world in general.