I was wagging my tail...

I was at my usual monthly acupuncture treatment with my doctor Janice and she's got all these needles in me and wriggling them around and all of a sudden, my tail starts wagging. Not once or twice but wagging just like I used to, back and forth, back and forth, back and forth. My dad's looking at Janice with his mouth open and Janice asks, "has he done that before?" My dad says no, not like that since his injury back in 2010. Anyways, I kept wagging my tail, stopped, then started up again. Janice was so excited that she ran out to tell her tech "Kate", who came into the room and watched me wag my tail. Janice went out to the parking lot to see if she could spot my mom. Janice comes back into the exam room and my dad finally gets out his camera and starts to film and guess what? I stopped wagging my tail. Ha, ha dad. Anyways my dad did get some video of my tail sticking out but no wagging. Duh dad.