Speak only that what is required
In 1825, a new czar, Nicholas I , ascended the throne of Russia . A rebellion immediately broke out, led by liberals demanding that country modernize- that its industries and civil structures catch up with the rest of Europe. Brutally crushing this rebellion, Nicholas I sentenced one of its leaders, Kondraty Ryleyev, to death. On the day of execution Ryleyev stood on the gallows, the noose around his neck. The trap door opened – but as Ryleyev dangled, the rope broke, dashing him to ground. At the time, events like this was considered sign of providence or heavenly will and a man saved from execution this way was usually pardoned. As Ryleyev got to his feet, bruised and dirtied but believing his neck has been saved, he called out to the crowd,” You see, in Russia they don’t know how to do anything properly, not even how to make rope.”
A messenger immediately went to the Winter Palace with the news of the failed hanging. Vexed by this disappointing turnabout, Nicholas I nevertheless began to sign the pardon. But then: “Did Ryleyev say anything after the miracle!” the Czar asked the messenger. Sir,”the messenger replied,” he said that in Russia they don’t even know how to make rope.”
“In that case,” said the Czar, “let us prove the contrary,” and he tore up the pardon. The next day Ryleyev was hanged again and rope did not break this time.
Moral of the story is clear that Once the words are out they can be taken back. Keep them under control.