- Rarely do what they say they will.
- Push their work onto you.
- Do not apologize for being late.
- Tell you, "I'm too busy."
- Reject your ideas out-of-hand.
- Won't let you off the hook when you're in a jam.
All the above are indications that a person is concerned only with their own needs, and unwilling or unable to consider other points of view. That rigidity and lack of empathy can indicate a lack of what we would all call, simply, "character," so be on the lookout.