Here is my problem. My ds knows how to unbuckle himself from his booster seat. He also knows how to unbuckle the strap buckle on his over the head car seat, so he will stand up while I am driving and climb out of that seat. Is there anything that I can try to keep him belted? I like having him in an over the head car seat {one with a bar across the front} because it is harder for him to unbuckle the seat from the car, and harder for him to get out of. Only problem is that with him being almost 5 he weighs to much for it. So I put him in a booster. well, he can very easily unbuckle himself from this, and often does when he starts to get restless. I just want him to be safe, and I want to be safe from the fines that they hand out like candy for child endangerment. Any ideas?