I have 14 month old dt, both boys. until this weekend, dt2 was not able to move at all under his own steam ,whereas dt1 has been crawling since he was 9 months. now dt1 is a bit phased and annoyed by dt2 being able to move, as he now has competition for toys and so on, and they keep pummeling one another! they both want to see/do what the other is doing so are always in each others space. sometimes they play really well, but other times, they are vicous, especially dt 1 beating up dt2. (ie:bashing him with a wooden brick round the head or pushing him over (ALWAYS on the hard kitchen tiles!) or scratching him and so on). I have tried various things for varying lengths of time, for example, telling dt1 off, reasoning with him, raising my voice, removing him from the situation, as well as ignoring him and his behaviour and giving attention to dt2 instead to show that his negative actions do not reap attention. his reaction 9 times out of 10 to laugh and carry on hitting his brother. dt2 is not innocent in all of this, as now his confidence is growing with being able to move, he is starting to give as good as he gets, resulting in real scraps between the two of them.I know they are young, but I want to try and get this sorted and I think they are old enough to begin to understand that hitting is not acceptable. all suggestions welcome!