Nothing that isn't obvious. Maybe they aren't pleasant to be around. Maybe they actually drove customers and an employee away. Maybe they are condescending. Maybe they talk a lot and don't actually get work done.
In short, they're an asshole.
If you have a bad detector for these type of things (like I did) ask your friends. Every single one them knew before I did.
In short, they're an asshole.
If you have a bad detector for these type of things (like I did) ask your friends. Every single one them knew before I did.