Ten philosophers were imprisoned in a country. They were kept together in one cell. They decided that somehow they should escape from the prison. They sat and made a big plan. They got the mold of the prison door key and made a duplicate key.
Finally, they chose the date of escape. The whole plan was clearly laid out. They decided that on the particular night, two of them will open the prison door with the duplicate key and signal to the others. The others would escape and these two would follow after locking the door behind them.
The day of escape dawned and two of them went to open the door. The rest of them waited for the signal. They waited and waited but never got any signal. Three hours passed. Suddenly the two who had gone to open the door came back and said, ‘We have to drop our plan to escape. It can’t happen today. We will have to do it some other day. We will have to reschedule our escape.’
The others asked, ‘Why, what happened?’
They replied, ‘What to do? The foolish guards forgot to lock the prison door!’
