It was definitely Sadie who put the stuffed cushions into play. Faulkner knows better and he assured me, "Wasn't me, boss, I'm the GOOD dog, I swear!" I bet she pulled it off the chair, and I am sure he chased her all over telling her not to play with my cushion-- which just made her shake it all the more, I am also sure. (My bad.) Still-- a $5 chair was a cheap illustration of why Sadie will not be invited to lounge around in the LR when we are not with them. :~)
I know this because he was left with some food temptations (inadvertently) in the kitchen for a few hours last night, and did not even investigate. I think it was ONE time as a pup he offered to chew a sock, and was told "MINE," and that was all he needed to know. Sadie, OTOH, is an anxiety/boredom digger, always looking for something to get excited about, and has had a lot less upbringing. That's OK. She has other skills in the pack mix.
I COULD spend a LOT of time training her, and she'd remember for a few days, but it's easier just to follow #1 rule: Never expect an animal to do something it cannot do. I'm happy to reinforce the surprising and desired things they CAN do, and build my expectations around that.
Like fetch-- they both like it but in different ways. When they are both present, some of the fun for them is the competition and showing off. "I'll bring it BACK," says F. "I hate to return it but I will run and run to go look for it," says S.
Whatever-- one of them gets it and the other one takes it from her and brings it to me so we can start all over. ;~) They both get exercise. It's that desire to compete that I will harness in teaching them to pick up trash on request. They definitely watch each other to see what I am rewarding. Sadie is even learning that "sit" and "down" might also mean "stay."