Yes I have. My Jag was pretty jacked up after jumping out of my tank. Been out for at least 30min to an hour put him back in the water and put him near the flow of a powerhead. I knew he wouldn't make it till tommorow. I took him outside and picked up a hammer and smashed his skull real good then the rest of his body. Messy but it worked.
:WTF: That's awful and cruel! I have to bite my tongue or I will get banned for the things I have to say to you. I know I'm not the only one that abhors the idea of burrying an animal alive, and for you to call it a mercy killing makes me sick. There are a lot of other ways to this...