This morning my eyes pretty much popped out of my head when I saw the following headline:  "Promising virginity to dad."  Was this a modern variant on the fate of Jepthah's daughter? 

Things got curiouser & curiouser when I clicked through to the actual op-ed, which described the history of "Purity Balls."  Besides providing yet another example of the importance of being sensitive to double entendres, Purity Balls are dances in which daughters pledge to their fathers that they will remain virgins until they are married.  The father is the girl's date and dancing partner; the mother is to look on approvingly from the sidelines. 

For a more critical perspective on the gender relations implicit in the dance, check out the op-ed.