True tails! Our office policy is no pets, service dogs only. But there was one time we made an exception. A middle aged male patient arrived with his dog on a leash. He was talking very sweetly to his pet and bending over to pet him. As I approached him I looked down to greet the well-behaved animal. But behold, there was only a leash. This is when we implemented “the exception of the invisible dog.” — Dave Schultz, OD, Urban Optics, San Luis Obispo, CA