Ive had yorkies for many years and have never had an hyper one, Chanel is only 8 weeks so i cant count her in yet, Chelsey is 5 months and very layed back, shes lazy lol... she plays when she feels like it, but is definatly not hyper, she loves to cuddle and will sit with me or hang on my shoulder for hours, my friend has a yorkie of the same age as Chelsey ( 5 months ) and thats a hyper active child
she runs from one end of the house to the other, all day long and will find anything distructive to do, she never seems to get tired, when my friend puts her to bed at night she runs the marathon first around her pen till my friend tells her to go to SLEEP
hardly eats anything so where she gets her energy from is very puzzling to us!!