Nut Cracker (3.5e Feat)
From D&D Wiki
Nut Cracker [Racial]
Halflings, one of the smaller races, has techniques secret to Halfling communities for dealing with larger opponents; Specifically attacking there nuts.
Benefit: Halflings suffer no penalties from called shots to the nuts
Special: Due to not everyone having testicles this feat only applies to those of the male gender.