No one was quite ready to bell the cat.
It is difficult to get a man to bell the cat.
Mr. Miao never gives a thought to personal gain or loss and is always willing to bell the cat.
Someone had to defuse the time bomb or all the passengers on board the ship would be killed. The boatswain offered to bell the cat.
All the workers agreed that they wanted a raise, but nobody offered to bell the cat and ask their employer for the money.
All agreed that it was a splendid idea, until one wise mouse stepped up and asked, "Who will bell the cat?"