Do your fish wedge themselves so far in your rock-work they actually get STUCK?

[Ross]

Although not a marine fish, I had a Yoyo loach get stuck in a rock.

I have a couple rocks that are full of holes that have been eroded smooth over the ages. I have them positioned upright so that they are dividers between certain plants.
The Yoyo loaches when feeling frisky chase each other around the tank at a decent rate of speed. I guess one thought it was a big enough hole to go through, but it got stuck between the pectoral fins and the dorsal fins. I left it there for a day or so, but it was constantly attempting to free its self.

The skin was being rubbed clean off the fish, so I had to push it through the hole. Well after much pushing and expecting the fish to be flattened in my hands, it finally slid through the hole. I figured it would be dead by morning. Well that was 11 months ago.