Robot1

An engineer builds a robot that can both swim and walk and gives it to another person not knowing about its *swimming* attributes. He plays with the robot and sees it walking for years, he begins to assume it can only walk. One day it falls in the water, its water sensor propeller and swim. The robot didn't adapt to the water, it expressed its attributes.
 * senses* water triggering it to shape like a submarine, push out a