omg i was watchin nagasarete airantou and in episode 15 the main character is talking about what he believes to be a turtle but its actually a kappa...so continuing he tells the kappa that its a turtle and that theres no such things as monsters. at this point the kappa looks down and punches him in the nuts, i started dying laughing from the animated reaction.
http://www.zomganime.com/nagasarete-airantou-15 its a few minutes in, its at the point where there is 18:54 left in the episode.
best crotch punch
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