And hey, arent dogs mouths' the cleanest? Thats the folktale ive heard

I doubt the slobber will hurt either of them.
I totally agree with this! I know someone who's always cleaning with bleach and her kids were the ones sick all winter! Now, mine are right in there with the dogs, dirt and all and they seem to have great immune systems!
Maybe instead of the phrase, "and apple away will keep the doc away" it should be "a shared bully stick..."