This is bizarre - after you find the guy - it's so obvious. Once you find him - it's embarrassing, and you think, "why didn't I see him immediately"?
Doctors have concluded that if you find the man in the coffee beans in 3 seconds, your right half of your brain is better developed than most people.
If you find the man between 3 seconds and 1 minute, your right half of the brain is developed normally.
If you find the man between 1 minute and 3 minutes, then the right half of your brain is functioning slowly and you need to eat more protein.
If you have not found the man after 3 minutes, the advice is to look for more of this type of exercise to make that part of the brain stronger, and yes, the man is really there!
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Ready, GO....
http://www.thehumorarchives.com/joke/Man_in_the_beans