my cat has mats, I sent him to a groomer last sunday, she shaved it, it's kind of scary, funny at first look, but what i am more concerned is if he'll be cold and gets sick as i live in the east Pennsylvania, but the groomer said it's ok, so now i keep my room warm. When i get to home this weekend, I'll take picture and post it here. The groomer shaved it a lion shape!