Let me paint the picture for you.
You are on the flat. The fishing has been maybe a bit slow. The shots are few and far between and the fish are not happy fish.
You see a fish, it is coming closer… maybe you get a shot in, not dice, the fish turns, slowly, not spooked, but now headed away. Maybe it is turned 45 degrees away. Swimming slowly.
In this situation… do you make the cast?
Points to consider.
1. Bonefish really hate it when flies move toward them. Prey does not sacrifice itself to the predator and a shrimp does not swim into the mouth of a bonefish. A bonefish that gets an uncomfortable feeling is a bonefish that swims away very, very fast. Sometimes, bonefish turns again and comes back if he isn’t freaked out. So, best to not fire off the Hail Mary and wait and see if it comes back around.
2. Things happen. A bonefish might, just might turn and pounce on the fly and gobble it up. You can’t catch the fish if you fly isn’t in the water and if the fish was moving away, it probably was going to be a shot you weren’t going to have again anyway.
Where do you come down on this?