Makes me cry

I wasn't going to post this because it makes me cry every time I see it or think about it. But Saturday I planned on cleaning Savannah's room (I left the whole morning open for this) So Savannah was taking things to the garbage and recycle and give away buckets all morning then I hear Gilli crying so I get up from the floor (because that's the only way to clean her room) I see Chase holding hair and he has his "amazed" look on his face I ask what happened and Savannah says (rather meanly) SHE PULLED MY HAIR! So I assume that Gilli pulled her hair out ....but then why is SHE the one crying so I ask what happened next she says (more mean than before) SO I PULLED HER HAIR! SO I look at Gilli and she literally has a bald spot in the back of her head! I BIG BALD spot I might add. Savannah was so mad that Gilli tugged on her hair that she pulled so hard that she ripped out a huge spot of hair. And every time I brush or see the spot I cry all over again....I was going to take a picture but I really don't want to remember this that well.