I don't know if the following is a common doggie behavior, or a common Sheltie behavior, or is uncommon, but it sure was cute. When my Sheltieboy thought that I was cheating him out of an earned cookie, he would look right at me, and stomp his paw. If that didn't immediately work, he would lift his leg even higher, and stomp his paw again. Of course, he always got his cookie, because he was always right. (He never did that to get unearned cookies. He only did that when he sincerely thought that he was being cheated.)