Dog sitting with Hanna

Hi Ruff Ruff.  I am excited to see you and mom and dad.  The dog sitter came over a little while ago and let me outside and then she threw my toy for me again.  I think she likes throwing it for me cuz' she laughs at me sometimes.  I'm not sure why but she calls me silly.  Do you think I'm silly?  I think she thinks I'm funny when I'm "retrieving" the ball and running it back to her.  She keeps calling me a retriever but I don't know what that means.  Do you?  Am I one..... a retriever?