Re; a fishes memory
 

My son and I were SM fishing in eastern Quebec and hooked the same fish
3 times in one day. He was landed about 8 AM the first time and had a
scar across his back from a propeller or an encounter with a pike. About
noon of the same day near the same log. a fish was hooked that broke the
line. At around 3 PM at the same place the fish was hooked for the third
time and landed with the same scar on his back. In addition we recovered
the Slider worm from the second hooking.

This had to be one hungry fish or he had a short memory span.