One of the many fables attributed to the Greek storyteller Aesop
concerns a meeting of mice. They are concerned about a cat.
One mouse has an ingenious idea: tie a bell around the cat’s neck
so they can hear the cat when it is coming.
A wonderful idea but with a problem…
which mouse is going to put the bell on the cat?
The job would be suicide. No one volunteered.
The phrase belling the cat is still in use today.
It refers to any idea that looks good on paper but is useless in the real world.