One thing that has always perplexed me is how people keep seemingly very dangerous fish, such as stingrays, piranhas, sharks, urchins, lion fish, etc. Heck even a catfish can stick you with its barbs. Have you ever heard of someone being hurt or even attacked by something aquatic they keep?
My Golden Rule of planted tanks: WWTAD-
"What would Takashi Amano do?"
RAOK Club #69