What is the most common telltale sign of a terrible leader (military or civilian)?

When someone stops taking their problems to you, then you know you are in trouble as a leader.

When you are told to work late as they clock out and head to the door at 1700

Well, let me step into this - we have 1 mouth and 2 ears for a reason; to listen twice as much as we talk. Poor leaders talk twice as much as they listen. I always tried to listen to those around me, to take in their input, and to make a decision. I did not always decide based on my subordinates input but I always listened to them. I never asked my troops to do something that I was not prepared to do.