I rescued my puppy Charlie when he was about 2 months old, and he is now about 6 months. He is a sweet cuddle bug but also has bursts of energy! He is definitely a quick learner and the only problem I have had with him is his obsession with food--even just his puppy food! If he thinks he is about to be fed or can sneak a treat I lose his attention completely.
The humane society did not know his breed as he was a stray puppy. Just curious as to what breed(s) everyone sees in him for fun! Size wise he is 32lbs, about 20" at the shoulder, 25" at the top of his head, and 33" from the base of his tail to his nose. It is hard to measure an energetic puppy so these may be slightly off.