I had to finally tell the office folks what it was after two hours as I think they were about ready to call the fire department to cut through the was to get the phantom cat. Great laugh!
We put three of them above ceiling tiles adjacent to air conditioning duct work. My coworkers were convinced a cat was stuck in the vent and pacing back and forth. We had maintenance in on the joke and they had a ball with it as well. Eventually had to reveal the prank when someone called the CEO to get maintenance fired for not being helpful!
Jokes for days!!
Had fun prankibg my wife and daughter!!!