Oh no! Is he OK? Or do you mean...squished?
I just did a major tank cleaning. I took out all the rocks and plants, etc. and then vac'd the sand really well. I didn't see my new Dragon Blood and stopped so I could find him. I looked for several minutes with no luck. Then, I thought of the large, fake rock I took out. I tried to look inside, but the holes were too small. I shook it a bit and he plopped out onto the coffee table.
He's fine...but he was out of water for several minutes! Tough guy!
Hope your fish is OK!