This isn't really gruesome but it was certainly unfortunate. Just recently I was trying to catch some random African cichlid babies out of my 300 gallon filled with clown loaches of all sizes as well as some red hook silver dollars and other fish. The tank is 30 inches tall and is about 6 feet off the ground so I need a ladder to reach in the tank. Anyways, I took the lid off of part of the tank to try to net the babies and one of my biggest clown loaches of about 7 inches gets freaked out and jumped out of the tank, flew over my head and landed on the floor after falling 7 feet through the air. I'm pretty sure it died on impact but I put it back in the tank anyways but it just looked like it was having a seizure before it finally stopped moving. That was a rough day.