with the big teeth? Tigerfish, from Africa. Rob C says:
"Found in the Okavango, Zambezi... can somtimes be persuaded to jump into your lap by using a dollop of C4 in a coke can. These blighters can usually only be caught by using a stainless steel lead on the hook, normal line is no match."
Jeez, with those teeth I don't doubt it. I'll have to take his word on it for the C4 method, having no familiarity with it.
Heard about the ol' boy caught using dynamite to fish? Game warden heard what sounded like a blast and went up the river a bit, found this guy anchored and scooping fish off the surface with a net. Looked into the boat and saw two capped & fused sticks and said "Jason, you damn well know you can't do that. I'm gonna have to write you a ticket and arrest you on top of that!"
Jason picked up a stick, lit the fuse and tossed it to the warden. Warden caught it and was standing there in shock when Jason said "You gonna talk or you gonna fish?"