Have a No A**hole Rule
Often we are tempted to work or associate with people who are a**holes because we think they can make up for it in other ways. Don’t do it.
There is nothing that says you or your company needs the additional burden of a jerk poisoning your culture and vibe. Hope that they can change and wish them well, but don’t let them in.
Remember, it’s easy to underestimate the damage someone can do to everyone else and overestimate the value they can individually provide.