At the risk of sounding a little syrupy, I have to say one of the great rewards of being the father of daughters is hearing them giggle together late into the night.
How to qualify a prospective son-in-law and see if he has the right stuff for your daughter? Ask him, “Are you a Communist?” and see how he reacts.
Sad fact: wherever you find concentrations of young men, expect a small percentage of adult men of authority looking to peel off the weak and confused and gratify their demonic id.
You can always rely on those who know you best.