Have you ever heard of a thumb sucking dog?? Let me introduce you to Chewy, lol!! He started doing this when he was a little puppy....he would grab Steve's thumb and start sucking away just like a human baby and continues doing it to this day. Funny thing though is that he will only do it to a man's thumb. I can count on one hand the number of times he's grabbed ahold of my thumb! He always goes after Steve's thumb, our friend Anthony's thumb, and when my godson was over a couple of weeks ago, Chewy even grabbed his thumb! And when there's no thumb available, he'll suck on his back leg, which irritates me to no end. He'll be laying somewhere, and I'll hear a sucking sound and look over to see him with his back leg in his mouth. All I have to say is "Chewy" and he takes it out with a sheepish look on his face as if to say "you caught me!"
Chewy is an extremely quirkly little guy, and this is just one of his quirks!