If you were able to determine in 5 seconds whether or not a person was a violent jerk, it would take you ~28 years of around-the-clock meetings to assess >= 50% of the current U.S. population, thereby rendering this comment meaningful and true. If you needed a whopping 30 seconds, it would take ~166 years. Better get cracking!

If I lacked the wit to understand sampling, that would be true.