I have two children (ds is 2yrs 7mths dd is 10mths). Dd destroys anything ds is trying to play with (brio train set, farm, duplo, etc). If she touches 'his' things he screams. If I take her away from the toys she screams. because she is already walking (lol!) there is nowhere she can't get too! Any suggestions for preventing ww3 and insanity (on my part)?