Hi I., I feel your pain. My husband is stationed out of Japan in the Navy. He's on a carrier right now so even if we did go to Japan, we wouldn't see him too often so I decided to stay here near the grandparents so they could get to know them. My kids are five and three now. My husband has been stationed in Japan for about two years now and we've only seen him once last Christmas. It's hard! My son started school while daddy was away and we had behavior problems. The thing that changed my son was letting him know that daddy was not happy that he was causing problems in school and making mommy upset. Being bad made daddy upset and of course he didn't want daddy to be upset at him. He was left in charge... man of the house and wanted to make daddy proud of him so he changed his attitude. I'm not saying he's perfect or anything but we didn't have problems at school. Aside from that, I would let him know what would happen if he goes to school and has an accident. It's harsh but you know how kids can be. Make sure he understands what you are going to be going through and how he has to be the "man of the house" for you because you won't be able to do things for a while. He has to be like daddy and daddy doesn't go in him pants. I hope it works. Good Luck!