I caught a minnow on the Derwent fishing with @Yuccaman and decided to chuck it out as livebait.
Upon reeling it in the entire body had been eaten leaving only the head akin to a sketch from a cartoon. Yucca couldn’t contain himself.
It turned out to be crayfish.
We used to fish for things like that in Winter Leagues and the Bank Runner would bring tales of "Whatca had, best in your section is 30 pairs of eyes"
Carried a razor blade to cut squatts into thirds for hookbait on size 28 and 30 hooks but single Joker was the best where allowed.
The razor blade was also handy if you blanked
fished a pub match years ago on trent was in flood during winter caught a minnow or stickleback cant remember chucked it back found out later i was only one to catch a fish all day could have won the match