Mum Saves the Day

Paul had anticipated most things so was always half expecting the knock on the door from the police apparently today investigating a missing local girl.
They showed him a picture of Sally, who was currently tied up in his spare room.
“No sorry, never seen her.”
A woman shouted from inside his house and the Officers stepped forward together, knowing they’d got the creepy bastard at last.
“Paul! I think I’ve shat meself.”
He looked embarrassed.
“Sorry, I’m Mum’s carer, I think she needs me.”
Paul closed the door, let the tape recorder play a while longer before hitting stop.