I am military spouse and often have to deal with behavioral problems with my children when my husband has been deployed (4 times - 6 months to 14 months; children now 8, 5, & 1). Its not the same thing, but the kids are greatly affected by it. Its important to try to set a standard of acceptible behavior with consequences. Good behavior gets extra rewards (whatever you choose: movie time, stickers, special outings, etc.) undesirable behavior does not get rewarded with attention. If it is just whining or verbal I usually ignore it or opt in quiet time/alone time where I keep them alone in their room or other space with a book. Sometimes this is all they need to regain composure or adjust from home to school. Sometime we enact busy time if they are not misbehaving but a little wild (running/wrestling in the house, jumping off furniture) where we give them special chores (age appropriate) for them to get exercise and work off energy in an indoor environment, or take a walk for a change of scenery. We have a list with words and visuals (for sone who has yet to learn to read) on the fridge for "crime and punishment" (the specific consequence for specific problem behaviors. We also have a chart with daily responsiblilities that should be done (brushing teeth, getting dressed, eating meals, clearing place at table, keeping room clean, etc.) I always try to make a point of talking to the kids alot. They understand more than they let on, and if you can explain things to them in simple terms, especially the reasoning for things, then seem to accept and cooperate more. It helps to find reason why it is in their best interest to cooperate, which seems to help them more willing to go along with things they would like to otherwise if they find a reason thats makes it to their advantage to cooperate. I explain to my kids that even grown-ups have rules to follow and conwequences for their actions. You dont pay your bills, you dont get teh service. you speed while driving, you get a ticket. You do something really bad, you get grown-up time out (JAIL), etc. I have also learned that kids will follow your behavior faster than they do what you tell them. It helps to be a good role model. If you throw a fit when you get angry, so will they. Parenting is a difficult undertaking and there are many different parenting styles. You have to find what works for you and your child and go with it. Your doc can help with specific issues, recommend certain books, or if all else fails, look to professional help. My brother in law went to counseling for years for "oppositional defiance disorder" starting in elementary school. He would do things like "screaming out the window "my mom is beating me", while she was on the front porch taking time out for herself, and calling the operator and asking for help, threatening his sister with a bat if she didnt do his chores, etc. The counseling helped him cope with his anger issues and now the man is a priest, helping others.