Why did Emma break her arm?

On Tuesday 5/27/08 Emma fell off the monkey bars & broke her right arm... on Wednesday I was ready to break mine or something else! Oh my, Grace asked at least 100 times an hour, "Why did Emma break her arm?" The first 50 times I tried to explain it, when that didn't work, I just started saying, "I don't know why - do you??" That would at least temporarily stop the questions... whew!