How to Deal With Difficult People?

Is it helpful or necessary to diagnose what's going on in order to deal with it? Absolutely. And my work and personal experience is left undiagnosed. Not only does it not go away, it often explodes. We need to deal with negativity in a positive way. Again, this is where it's tapping into the human and the emotional connection. What would you want in their shoes? They may not even be aware of the impact their behaviors have it.