"Apartment gossip" joke

I heard this on the radio this morning. (Paraphrased by myself.)
One evening a husband comes home to his apartment very roughed up.
When his wife sees him she asks, "What happened to you?"
"I got into a fight with the apartment manager."
"Whatever for?"
"He said he had slept with every woman in the complex except one!"
"Hmmm. I bet it's that snooty Mrs. Green on the third floor."