There could be a negative thinker hovering around you today, and they’re going to tick you off. Just when you think everything is going great, they’ll spout off with a brand-new complaint about something trivial. They need to hear how their negativity affects you, so let them know. Break it to them gently, but don’t leave out any details. You’ll actually be doing them a favor. Their attitude has created problems in partnerships before, and you could help break the cycle.