kimberley ; first of all the best medicine you can do is do what you said, take them out of his mouth when he has them in it, tell them there are things that go in our mouths, and things that do not, only food goes in your mouth, just keep up in telling him and give him a few reminders on how germs are spread, but dont make him germaphobic, we all eat things we should not when young, and dirt and worms go in there, and frogs,and flies, i know totally gross but none of us died from it, but its stll a good lesson to learn about germs etc, teaching them is the tool, and some kids put things in their mouths as a soothing thing cause some trauma may of occured in their lives, or he is stressed, do what you can to make his home secure snd wonderful as im sure you do, keep up the good work, and stay consistant, consistancy can take you very far, enjoy life D. s