Christine's desk is by the door to the deck, so he's really harassing her. I've been scooping him up and dumping him through the cat door on the porch whenever he makes himself a pest. This last time he resisted, so maybe he'll figure it out? That asking to be let out doesn't work all the time?
Unfortunately, Christine is far easier trained than i am, so there's a track record of being let out.
This is also posted at https://elainegrey.dreamwidth.org/680871.html .