Pistol shrimp/plate coral question

[Fig70g]

I have had a tiger pistol/YWG pair since my first tank. They are def one of the more interesting things to watch in the tank. About 2 mo ago I purchased a small plate coral, it was about the size of a quater but great color and cheap! It was growing great, but my pistol kept building his hole right next to the plate. I moved the plate a couple times, but the shrimps hole kept appearing right next to the plate.
Of course- I went away for the wkend, only to come back and find the hole right were I saw the plate left- no sign of the plate.

I am sure this has happened before, but are the pistol shrimps attracted to plates or any other coral? I figure he dragged it back into his hole but cant see that far down. I moved some sand and CC but cant find it. Are the plates just not safe to keep with pistols?

[nikon187]

probably using it to build with. nice flat rocks are hard to find for a nearly blind shrimp :)

[GONECOASTAL]

i actually had a few small frags fall into my pistol shrimps hole. was i ever mad thinking i just lost my new coral. then i seen him dragging it out, guess he didn't want it...