Technicly i do hate how society finds it funny if women or anyone kicks males balls,some women like doing it on purpose,other just find it funny and it happens at schools,so i have been reading a few forums and stuff about this.
Check comment 15:
http://www.urbandictionary.com/define.php?page=3&term=kick+in+the+nuts
Seems like this is the thread were they talked it mostly.Actualy what is surprising is also deaths by ballbusting:
http://www.femalefirst.co.uk/board/ballbusting-t71050-105.html
And there is also some comments on notfourchan(site is loli hentai) in random but not gonna post links

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