I disagree. The water molecule takes the momentum of the photon that would have been produced, had the first photon started to exist in free space.
I'm not pretending to have a degree in Physics, but I studied 1st year Physics and am reading about particles.
Then you are in a good position to ask questions. Making up goofy stuff is a waste of time and makes you look silly.
Me too. That's where I learned that I don't know anything about physics. Maybe you were away that day.