Sometimes, I wish we didn't need all kinds to make a world.
Anyhow, I am sensing an underlying pattern here. It's almost as if you could put these people into a special group of their own.
Well, there is a tried and tested method - keep them at arm's length. Haven't you heard of the phrase: keep your friends close and your enemies closer?
Just kidding! My way of approach is more likely to be along the lines of "out of sight, out of mind!"