There lived a famous scientist named Professor Bob. The opposition companies were keen to steal his secret findings. So he created a robot named Jack to protect the secret data.
So in the night, he kept Jack with the secret data in the middle of an empty, closed room with a locked door, no windows and a table with a glass of diesel if the robot wanted to recharge.(Not possible to demolish the house or break the door)
The robot would kill any unidentifiable person. It had an on/off button which was with Professor Bob. It could not be stolen.
The next morning, when Professor Bob entered the room, he found footprints on the ceiling, the diesel spilt on the robot's head and the secret data stolen.
On the same hour, Detective Chuck investigated and found out what had happened.How was the data stolen? Think outside the box and answer the question.