I really want a lab, but my parents want a doberman. we have an old shih tzu, but my parents want to get a big dog for protection. (pretty much just the size to scare people away) I know that labs are playful, and thats what i really want, i want a dog i can play with and go running/walking with. my birthday is coming up and that is all i want for my birthday. how can i convince my parents to get a lab? is there anything i can do?