Now that you mentioned it, my dog Cash did this once.
My husband and I would take him everywhere we went within reason of course. Well, we were headed to my mom's house and decided to leave him. Well, Cash was none to happy about that. As soon as we loaded up in the car, he followed us down the driveway, and gave us the pouty lip look. We had to stop and just look, because it was so funny. Well, we decided he could go, so we open the door, and of course he hopped in. Funny thing was, he turned to face the back of the car, and kept looking over his shoulder as if to say "How dare you think of leaving me! How could you!".....It was so funny, yet so perfect. I miss him dearly!