This goes back to the dog my family had when my sister and I were growing up. He had one really odd habit: He wouldn't 'play catch' with any toy........just with a rock! And I'm not talking a small pebble or anything - I'm talking like 2+" diameter rock!!
Of course, you wouldn't want to throw it up 10 feet in the air or anything. But if you'd toss it a few feet up in the air, he'd catch it and bring it back to you. My mom used to get so upset with my dad and I for doing that with him! If you hid those rocks and refused to toss the pooch one when he wanted to play, he'd go out into the school yard behind our house, dig another rock up, and bring it to you. It sounded like he broke all his teeth when he'd catch one! Never had a problem, though.
Bill
