A patron setting pre-agreed upon rules in the contract for a job is a lot different than him sitting in the room saying "no" or "can't" between notes, brush strokes, key strokes, and flashes. I don't know why that needs explanation.
Oh rather:
"Get Leo on the pigeon!
Yo, Leo. Bishop Cleese here-- Oh. Good. Good. Yeah. Bishop Chapman is still prattling on about how silly everything is--
--I know right? Well now he thinks he going to be king or something. Delusions of grandeur, I tell you.
Bishop Palin has gone to the New World to save souls or sommat. I told him it's a fool's errand, but he thinks he'll surprise people. He also brought that chair I'm so fond of.
What?
Yes! Like clouds, I tell you!
Any-way. The reason I'm pigeoning is we got this panting about the Last Supper, right? And Mike was going to do it for us--
--Yes! Yes! Marbles ALL gone. He wanted to add Kangaroos. Kangaroos! So obviously that wasn't going to work out. So I thought I might give you a buzzard.
You'll help us out? Brilliant. There's just the obvious contract negotiations and what not. But nothing should be too much of a problem. There is one thing, though. Yeah, well, given our recent troubles, I think it might be wise to send Bishop Jones along to give you a hand--
--Well, I think it would be best to have someone in the room, you know, to peek over your should every now and thing to make sure everything is going according to pla---"
Mike hangs up his pigeon.