It can be hilarious seeing your dog's reaction to a new item in the house. My Mom's legs are bothering her and we've been trying to find stuff to help her out. It dawned on me that I had a full body massage pad. I use it when my arthritis acts up. I had it on the floor so I could clean it up and test it out. Misha happened to be standing on it when I turned it on. She froze for a couple of seconds. Then, she leaped through the air as if she was on hot coals. She got behind me to hide. Later, I put it out for my Mom. Misha climbed up on my Mom's lap, looked down at her legs, and jumped off. She did this several times. She still isn't sure of it! The high setting is pretty intense. I can feel the vibration sitting on the couch about 5 feet away (my Mom is in her chair). The floor boards pick up the vibration. Misha doesn't know where she is supposed to go. LOL This was my morning entertainment. :D