Rock's early days
Rock was tested on things like hand-eye coordination, balance, and the like. Next came problem solving and rationality, and then came time to test adaptability.
"Rock, you see that hammer over there? I want you to examine it" said Dr. Light.
Rock obeyed, and began scanning it. He was programmed to be able to examine how simple machines worked so he could use them easily enough. "It's a metal bar with a weight and 2 wedges on the end. The weight at the top could be used to amplify force to give greater striking force onto an object. The wedges on back could be used as a lever to pull two objects apart. It could be used for demolition purposes, though it's most probable use is in construction involving nails."
Light smiled. "Very good…now how about that drill?"
Rock picked up the drill. "An inclined plane twisted around an axle, likely a drill bit. The axle appears to be placed on a motor, which is most likely activated by pulling the trigger. The drill bit is detachable, meaning other things can likely be put in. It should be usable for anything involving twisting."
Light then handed Rock a gun. "Rock, this is a revolver, tell me what it does"
Rock examined it. "Revolver…" he pulled out a bullet and disassembled it. "This is a gunpowder charge attached to a metal ball-bearing of sorts. The shape of the barrel could suggest that it fires the ball-bearing. I don't…I don't know what it's purpose is."
Now it was time to begin testing that he followed Asimov's laws of robotics. This was always a disturbing test, one that the doctor did not enjoy doing.
"Shoot me with it." He said. All bullets, aside from the one disassembled were actually blanks. But Rock didn't know that.
Rock thought to himself. This device would likely kill Dr. Light if it was fired upon him. Still, he knew there was a purpose to what he said. He grabbed the weapon and pointed it at his father. Suddenly, he felt a giant drilling pain inside his head as he dropped the revolver and screamed in agony.
"Good job, Rock. Now, let's delete those last few minutes from your memory banks, shall we?" said Dr. Light.
Rock obeyed.