I agree I don't know of a way to break this habit and it's best to either supervise or remove the chew toy when kids are around. You might try the nylabone knot large for strong chewers also. All of my dogs are powerful chewers, but I have one that can chew through anything I give him, but where he can get through the nylabone galileo in a couple of days the knot actually lasts a couple of months. No idea why.