Oh my gosh, my pug Quincy did that too! When he was just a puppy he would latch on to one of our slippers with his mouth and there was no getting him off! He would also tug on our pants and shrits to get out attention! Even grabbed pillows are blankets. Everytime we told him NO! in a firm voice. Look her in the eyes when you say it...pugs hate to get in trouble so when you look them in the eyes with a "no" they know its bad. Evenully my pug stopped and I think part was because he just grew out of being a puppy. I hoped I helped!