We see griefers of all ages in the MMOs we play and the kids games are no exception. We've discussed before how games like Toontown Online take steps to prevent griefing with canned chat phrases and passworded friend features. The worst thing a toon in Toontown can say to you is "You stink!" which is really not very hurtful. But it is rather bothersome when it is spammed at you until you are able to escape the griefer, say by going home and gardening. .