Evidently the good sergeant left only when the colonel did.
I put the phone down and saw a note my sergeant had left me: Your brother called.
The sergeant major left the room, and returned immediately.
The sergeant left, muttering, "How those guys think they earn their salaries is beyond me."
"The sergeant wouldn't have left if he knew Richardson was inside."
The sergeant left them and turned his attention to ChooChoo.
The sergeant smiled at him and left the room behind the captain.
We went into an interrogation room, and the sergeant left us.
The sergeant left, but not without a lot of questions still in his head.
The sergeant left the house and knocked at the door of the neighbor with the phone.