So I lost my Gerber River Runner Knife for the second time and I am looking for a new knife. I would prefer it to not be blunt because if I am going to defend myself from the Cougars at the Rio (the kind who enjoy margaritas and young kayaking studs with bitchin mustaches, not deer) then I need a pointy blade. Most important is a blade that is not going to come out of its sheath and the sheath itself come off. Cheap is good too. Any ideas?