I have only one PC in my home and users are two (me and my son). So fighting to sit in front of computer is an obvious matter. To solve this problem (and to save my son’s eyes), I divided the working time on PC. Day time is for my son (when I can do other jobs). And after Margrib prayer, my time starts. Flexibility is if my son isn’t at home, or busy (playing with cousins) or sleeping (generally after fazar prayer) then I can also work at day time. And in my son’s feeding time (may be at night) he can also watch animation films in computer. So, battle ended.