Maybe the kid saw him peeing and thought he was joking when he said his lavatory was occupied.
I thought that too, but read that the home had a second bathroom. So, he is just a perv.
I was reading more about this (I hope you've had your breakfast already):
She had a phobia about leaving the bathroom -beatings she received in her childhood caused her phobia. McFarren wasn't sure how long she was in there because “time just went by so quick I can’t pinpoint how long.”
“The house was cluttered but not in shambles,” the Ness country sheriff said. “The smell was overpowering — a terrible smell about the house, obviously coming from where she was at.”
The sheriff said that judging by the woman’s condition — she had open sores on which the toilet seat would stick — it appeared she likely sat on the toilet continually for at least a month.
“She would have to be sleeping on the toilet,” the sheriff said.
Police found the clothed woman sitting on the toilet, her sweat pants down to mid-thigh. She was “somewhat disoriented,” and her legs looked like they had atrophied, Whipple said.
“She was not glued. She was not tied. She was just physically stuck by her body,” Whipple said. “It is hard to imagine. ... I still have a hard time imagining it myself.” “We pried the toilet seat off with a pry bar and the seat went with her to the hospital,” Whipple said. “The hospital removed it.”
Babcock has an infection in her legs that has damaged her nerves, and there is a possibility she may wind up in a wheelchair, McFarren said.
“The unfortunate thing is this truly is a case of two people, in my opinion, with diminished mental capacity,” Whipple said. ....
ya think?