My twin 2 year old boys (25 months) have been potty trained since the end of May. One of my twins has been totally night and day potty trained since the first week of June. My other twin still wears a diaper at night, the problem is the one that still wears a diaper. He Has constant accidents in the car, I constantly take both of them to the bathroom when we are out and about. But he still has accidents. Today he peed on the way to dropping their dad off at work, both the boys went in the potty we have in the car. When I got to the gym I was taking my twin who doesn't have accidents out, telling him what a big boy he is for not peeing in the car. My other twin looks at me and starts smiling peeing in his pants🤦🏼‍♀️ I'm ready to pull my hair out with this kid. I know he's potty trained it's a behavioral thing going on. I need some advice on what to do. Thank you in advance!