Blue Damsel reef safe...really ???

[janalta]

So....on every site I've ever seen, Damsels are always marked as reef safe....and, for the past year, my Blue Damsel has never bothered any of my softies or LPS.
Now, he is trying to demolish my new green Millipora !!!

Had no idea who was starting to chew on it...the one small arm that broke off was stripped clean and the main coral has several patches missing.....caught him tonight grazing all around the base of it !
This is my first attempt at SPS and it was doing so well !!!!

Anyone else had damsels eat their corals ????