Thanks you two.
I think I just needed to vent and get it off my chest yesterday. It can make for such an exhausting day sometimes.
I'm glad to read that I'm not the only one dealing with this. The DCK is older, so it's not just teaching a two year old to play nicely, KWIM? I actually spend a lot of time helping this particular child be more understanding of the little ones who, of course, don't have the ability or fine motor skills to play the way DCK wants them too.