I saw Prince John once during Halloweentime when the Villains were still out in DCA near the Hyperion Theatre. That was during our first Halloween stay several years ago, must have been 2008. Never saw him again until last fall when I met him in Disneyland Paris.
After we were stuck on Haunted Mansion forver my friend and her family wanted to go again. Her oldest son and I decided to sat out. We sat down on a bench near a CM entrance. Out walk Shan Yu, Maleficent, the Sheriff of Nottingham and Prince John. I am pretty sure you heard my squeal at the other end of the park.

Thank god the kid was smart enough to follow me when I ran after them like a banshee was following me.
They were totally in the act. I had drawn Prince John in his night gown and asked him to sign. He so wasn't happy about the pose, sent the Sheriff to arrest me and I "bribed" the Sheriff with a couple of Euro coins. It was very funny.