I didn't mean to flame - honest - I don't like it when that happens on here. Stick around long enough and you will indeed get flamed! LOL - I apologize.
I think if you look at the verbage of the rule it says any RUNNER. In most (or maybe all - I didn't re-read the book) cases, if it includes all runners the book states RUNNER(S) or says ALL RUNNERS. In that age group, the kids are followers - one had to be first. Bang that one and return the rest to their bases. Also, if you look at the penalty it states that a DB is called a no pitch declared and THE RUNNER is out.
I think people wondering where his rule book was located is because most if not all on here wouldn't dream of taking a rule book on the field with them.
Because Mountaineer said so . . . I do like your thinking!!!