You did the right thing, Schnauzer's have huge personalities and egos to match! Little things with them mean a lot. You are demonstrating your leadership qualities by doing the sit every time he wants something and every time you don't want him to do something. They are one of the breeds that get a bad name sometimes because they are misunderstood and their quick minds and ego's are not catered for properly. I love them and think they are fab dogs - I've met a few "nasty ones" that turned out to be playing by the rules and totally adorable - but misunderstood. Well done you!!