Don't know how old your furbaby is but neutering doesn't teach him to control his bladder. Only time takes care of that. I'm sure that you have picked up on YT that Yorkies tend to be a stubborn bunch in general. Quite a few talk about their little ones having accidents. As for tearing out the stuffing, that is a familiar past-time around here. Calls for new toys quite often. Even blankets bite the dust. Just the way it goes. They're busy little buggers.
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Joanne

Eli

Chipper

Eva

Snowboy

Rosie(R.I.P. 1996-July 29, 2013)

Cocoa(R.I.P 1998-April 26, 2012):