No Time for Sergeants Puns

My grandad told me this one and it stayed with me forever.

"Did I ever tell you about the time that I was in the army?" he asked me one day, this should have told me something was off right away because no one ever even mentioned him being in any army. "I was having an affair with my superior officer, she was beautiful. But it was too weird, too strained by the fact that I was a private and she a Sergeant. So I pulled her aside one day and said, 'listen Tina, I have to break it off, it's getting too difficult to keep going. But she was mad about me and she started crying. I tried to console her, I said 'Don't cry for me Sergeant Tina!!'