Henry is only 2 years old and still has his puppy biting sessions when he gets excited playing in the backyard. He often bites his tongue because he gets so excited. You can see it on my hand in the video, however its superficial and heals fast. We call him, "The Land Shark!" He's normally a very subdued and quiet boy. But every so often he has a puppy n crazy, zoomie and biting session. All part of the Pug Dog growing process. He the most affectionate Pug I've ever had out of all 10 Pugs in my Pug Dad history, since 1978. Pugs are shadow dogs and unless your completely dedicate to them 247 Pugs should not be a choice. However, Pugs do better with more than one Pug as a companion to each other. Especially if you work and have to leave them often. Just helpful hints to a 45year Pug Dad and Pug owner.