This funny quirk started when he was a puppy... whenever somebody comes over or we come home, Zach has to grab something for security and he runs around with it in his mouth. It's usually one of dad's socks, or a shirt, and sometimes, embarassingly, underwear. Now he usually goes for something big. The more he can fit in his mouth, the happier he is. This is actually 2 pairs of socks, one pair of underwear, and dad's sweatpants, all rolled up into a ball and stuffed in his mouth.