Hey all!
I'd firstly say that if anyone ever came into my house and started telling me how to treat my animals, let alone pushing them to sit down, they would be out asap and not welcome back.
When we had a 6/7 week old doberman pup, we invited a friend round. I went upstairs to go to the loo, and whilst I was up there, the 'friend' had left his glove on the floor which the puppy picked up, he then hit my puppy, nt realising my partner was watching through the hatch in the kitchen. When he saw my partner was watching, he went and apoligised for hitting our puppy.
My partner only told me about this once 'friend' had left the house, as he knew I would kick off!
The friend, I have spoken to once since, and he sure as hell is not welcome to our house anymore!
May be difficult for you, but I would reply saying sorry he felt uncomfortable, but no one should com into your house tellng you how to raise your pets, let alone try forcing them to do something.