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					Originally Posted by kab012345
					
				 
				Yep, approaches like these make it very fun for the user. I've done a few of these before on some phpBB forums. :) 
For example, I discovered http://justhumans.com/ about 2 weeks ago. Its very fun unlike a regular CAPTCHA which might just be annoying to some.  
 
And a rat is a common household pet? :P 
			
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 It was three letters. What if someone didn't think of "cat" or "dog"?! :D
Here's another one:
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				How many letters are in the answer to the question, "How many letters are in the word 'two?'" (just to really confuse them; the answer is five [5], obviously)
			
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