Must have been his day off from the Chior Boy.
If you did accidentally end up with a potato up your jacksie and you has to go to hospital, why oh why would you give them your details and tell them you were a Rev? Maybe he was really a judge and made out he was a Rev. If I ever got a potato stuck* I'd wear a bag on my head and swear blind I was the Prime Minister. Or maybe I'd make out I was Cleat. Not only would they not be surprised, they'd probably take me to the specialist 'Cleat Ward' for removing embarrassing objects.
*as a result of cleaning my bike without my kecks on while my wife was out and I hadn't realised she'd left the bag of potatoes on the chair which I sat down on very very heavily(or something similar)
I'm sure i read King Edward found this desireeable as well.
Gosh, I bet he had a Red Rooster when he found that thing lodged up his Maris Piper. Some people, like Charlotte, just Desiree weird things I guess... better than Fingerling a Pink Eye.
Sometimes being a Potato farmers son pays off.