We had a swordtail once who seemed suicidal - he kept jumping out of the tank, so we put a plexiglass cover on it, yet he still managed to jump out one day when I was feeding everyone. Unfortunately, he jumped so that he landed where I could not get him quickly. The fish tank was on top of a very heavy bookcase (filled with heavy books) and the 20-gallon tank full of water didn't make it any less heavy. By the time I got him out from behind it (very small space that he fit between the wall and the bookcase, he was quite dead. Poor fishy.

Glad Guy seems to be recovering ...