If you are at all still interested in him I would recommend going back another time. All yorkies are different and some are more active than others. My Hefner is active for only short spurts every day, but he LOVES to sleep and he would sleep in until 10 if I let him and take many naps during the day. He also likes to go to bed at about 9 pm.
He goes into the "wild willies" every night just before bedtime I think as a way to wear himself out and wind down for sleep.
Ava, on the other hand is up at 5:30 am and ready to play...she is spunky and ready to play all day long and she is a real character with barking and growling...very vocal. I wouldn't really call her "hyper" though because she can also be calm and listens closely to commands, is easily trainable and smart.
Princess Chai has a nigh metabolism...she eats more than all the rest and is very thin but is the fastest and the best athlete...very agile and able to jump very high..also very vocal and bossy. Some people might call her hyper but she is my lap baby and wants to be in my lap more than all the others. She will go take a nap with me whenever I have the time.
Then, there is Buddha, who is aptly named because he was wise and mellow as a puppy even. My daughter is in college so she couldn't have an overly "hyper" dog and he will play and she wears him out with lots of walks but he is perfect for her lifestyle because he doesn't mind "watching TV or laying in his bed.
Anyway, it could be that the little guy you saw had just awoke from a nap or was going though his daily wild willies and the next time you visit he might be less active. At ten weeks they are usually sleeping a lot still and sometimes it is hard to get them to play so maybe the breeder planned your visit at a time when she knew he would be playful.
Sorry this is so long but ...Welcome to YT!!! |