I take it to the local taxidermist and have it stuffed, then I let the kids in the neighborhood take it for show and tell. Also, when the other fish are behaving badly I show them the stuffed version and tell them see what happened to Juno, you could be next if you don't stop harassing the others!!
Actually, I go into a deep depression and convince myself it's all my fault, I'm a fish killer....ahhhhhhh say it isn't so!