We see a lot of lemon sharks on the bonefish flats in the Bahamas and Carribean. The problem is they are generally moving in a very lazy fashion and it's easy to foget how quickly they can turn dangerous. A couple of season ago I had hooked into a career bonefish which made three very long runs. As I was recovering line from the third run I noticed a yellow flash out of the corner of my eye. A 6ft lemon was doing high speed zig-zags homing in on the distressed bonefish. It was exteremely determined and I could see the inevitable even when there was still 50yards between the shark and the bonefish. I yanked the line & the leader broke. About 75 yards further out the lemons tail waved in the air as if to let me know who the alpha predator is around here!
When sight fishing, look over your shoulder from time to time, you never know who's behind you