Ninja Escape

Every evening, you meet with a ninja for a beer at the bar. These meetings are relevant to your work, as well as the Ninja become your good friend. One evening, you will, as always, went to the bar, but did not come ninja. You waited a long time and started to worry because it is never late. You went to his house and saw that he was trapped. Someone locked him inside the house and throw away the key. Free Ninja.