Dog-Training toy

My beagle didnt know how to bring the tennis ball back to me when i threw it, so i have come up with an instructable to teach dogs how to return a tennis ball. And ever since he's been able to return the ball to me.
                               WARNING!!!!!!!!       BE SURE TO REEL IN B4 THE DOG GETS AHOLD OF THE BALL TO PREVENT INJURY OR GETTING TANGLED IN THE LINE!!!!!!!!


P.S. I AM NOT RESPONSIBLE FOR INJURY ALTHOUGH IT IS HIGHLY UNLIKELY FOR ANY TO OCCUR...

Step 1 Items Required:

1. A sturdy fishing pole
2. A tennis ball
3. A bobber (preferabally the standard red-white ball bobber)
4. A knife (to cut open a small sized opening in the tennis ball)
5. And if needed a few sinkers.