About the carseat , he likes to undo the top buckle of his straps and slide them off . I have to rebuckle them every 4 -5 mins . I've tried almost everything to keep him from doing it . Do they make any type of lock to put on their to where he can't figure it out . My son is super smart . You don't even have to show him to do something . He watches u do it once he knows how to do it . Were very lucky we didn't get a ticket with it today ! I noticed it after the cop left that he had the straps off . I just don't know what else to do !!