Thank you William S. Goldman

I've discovered the secret to changing her diapers. It is very similar to the fire swamp from The Princess Bride. As a precursor to any blast there is a popping sound. When you hear this noise you've got to be quick. With a deft hand you can avoid the spray. For the more advanced diaperer you can even block the stream with the current dirty diaper. I think I might be able to handle this.

If you are wondering about the ROUSs, frankly, I don't believe they exist.