My puppy , granted in the coyote stage, but still, he has 3 inches of fur on belly so not completely slick at 22 weeks. I have been asked if he is a toy german shepherd and today asked if he is a greyhound. Other peole have no idea what a sheltie/ collie is and so many in the younger generation (30 and under) do not even know what/ who Lassie is anymore so there is no frame of reference. A neighbor told me how hyper my dog was when well behaved on a leash but he wagged his tail at her and tried approaching her to greet. I didn't let him as she clearly must be scared of dogs! I had to tell her he is a puppy!