Board Thread:General Discussion/@comment-4698889-20171205212736/@comment-6986530-20171206021640

It's possible that Ma thought Waiter was just another name given to Arte; Arte was the Graveyard Restaurant's "Waiter" after all, if we're correct in assuming so, and Waiter was given Arte's body. Maybe Arte and Waiter were careful to never be in the same room together when Ma was around, and they convinced (at least) Master of the Court not to talk to Ma about it.