I own 4 German Shepherds! Do you know anyone who has one?
I used to have a large-sized one that worked for me, but she died.
Aw, that's so sad. They're such intelligent dogs!
Yes, I have a disability, so mine used to assist me with various types of work.
Okay interesting! Do you have a new dog now?
No, i'm thinking about getting another German Shepard because they are so popular. According to the American Kennel Club they are the second most registered dog in the US.
Wow, I'm not surprised though. People have a bad misconception about them and think they're aggressive, but I've never encountered this before.. 
Me either, mine used to be highly obedient and easy to train.
Do you know how long people have domesticated this breed of dog?
Not long since they are a relatively new breed. Their origin dates back to around 1899.