I have 3 small yorkshire terriers. Their breed was originally developed to catch rats in clothing mills. Do you have any dogs? 
I do, I have a two year old German Shepherd. 
Cool! Those used to be called Alsatian in the UK.
Really I never knew that,  Can you tell me more about Shepherds, I like learning new things about them.
I know that German Shepherds are popular companion dogs just like Yorkshire Terriers.