Yes, you heard me right.  Here is how I did it.  ( sort of)  It really worked ( sort of)

I also bribed him with a doggie.  Lots him grunting on the john “mama, ( bearing down, then release) Can I have a doggie now?”

Ironically, once he was fully toilet trained he said he didn’t want a doggie.

Me:  Why not?

Rex: ” I don’t want to clean up their poo.”

See, no one does.