The one time plea

I just want ONE TIME where my children don't try to ruin something normal. Honestly, just one right now would make me have renewed hope. At the orthodontist yesterday DD ran into the X-ray machine...the huge panoramic one that hangs down from the ceiling. The one that is big enough for ME to stand INSIDE it. What's morose about this is that as she was walking back DS1 turned to me and said, "I bet she'll run into the X-ray machine". Why do we have to know those things? Shouldn't an 'accident' be just that - surprising.
After she ran into it, the tech started rubbing her head and walked her back to me and said (at least 5 times) 'What a sweetie, she just didn't see it and ran smack into it'. Ay Carumba! That puts me back in the position of crazy person. Do I go along and say "oh, poor you" and rub her head - thereby she knows that I caved to not look stupid? Or do I do what I did...I looked at DD and then at the tech and said "that's not shocking, she runs into lots of things, it gets lots of attention, huh?"
Then, of course...I get the looks of crazy, mean mom. I don't want to hand out articles on RAD or even ask anymore people on the outskirts of our lives if they know what RAD is. I just want to live our reality and hope for JUST ONE TIME that this doesn't come up.

On a somewhat comical note: The orthodontist looked at DS2 first and we talked about making some room by pulling teeth and he commented that we had a long road there. (DS1 is already in braces) Then, he flips to DDs x-rays and says "holy moly...DS2 will be easy" and smiles. We have a long toothy road ahead!