As a smart engineer, my classmate is a very curious person. He likes to explore many new things.  One time we were doing a project in a rural area, he (as a new driver) drove his first car and took a sharp turn to run over a soda can on a narrow road.  I was kind of scared asking why.  "Just to listen the sound when the soda can is destroyed".  "Hey, the soda can can cut your tire too and we will be left here with trouble". When he got married after college in China, they saved for months to buy their first b/w TV. Once the TV was home, he wanted to check what is inside. He opened up the box first and then took some parts apart.  Of cause he did not mark the parts.  Then he could not put things back.  His wife is still using this story as a joking materials.