In the Guardian we read,

Surely a woman shouldn’t be forced to wax testicles if that makes them feel uncomfortable?

Who or what does "them" refer to? The testicles? The woman?

Notwithstanding my delectation in occasional wildly funny ambiguities such as that one, I continue to advocate systematically avoiding them by using singular gender-neutral pronouns when referring to just one person. In this particular case, since the person is specified as a woman, "her" would also have fit.