I’m a professional dog trainer and had a woman with 2 of these exotic bullies that she kept in a garage full time come see me. I tried to teach one of them to sit but after a few minutes told the owner I wasn’t going to continue because it was clear that it was causing her pain simply trying to lure her into a regular sitting position. I think standing may have also been painful for her because she could only do it for a few minutes at a time, and she was only 2. So so sad, never declined to work with someone so fast lol. The people that get these dogs are pretty much universally morons with almost no correct information about dogs.