ds 2yrs 1mth is usually great. He has excellent speech and is bright and sharp (sound like i am selling him )! But lately he does deliberately naughty stuff - he up-ended his dinner plate and demanded dairylea instead, drew a giant green spiral over his tummy, used green pen to draw circles on hall wall, throws stuff, tips drinks all over floor etc. I always act promptly in reprimanding him - usually taking something away or withholding a 'treat' and i get him to say sorry and we hug (a la supernanny ) which does work but why does he do it??? I have a 10yo dd and she never did this stuff. Changing his nappy is a nightmare and I have found myself losing the plot over this one. Any tips/words of comfort/advice etc????