Have you taken tests that proved things aren't as they appear?

While taking undergraduate courses for my masters, I was 43 years old, taking classes with college freshmen.

One teacher had us take a test to find how prone to risk-taking we were.

The man sitting at the desk next to me, covered in biker tatoos, wearing a black leather jacket, scored the lowest in the class.

Whereas, I the little old lady of the class, scored the highest. The teacher was puzzled by my test results, since I looked so normal sitting there.