The backstory: We're not an especially private family at Sassafras House (read: lock that bathroom door shut if you really want some alone time). And JT is acquainted with the biological reality of the facts of life (read: he knows why someone might need a tampon). But that he knows about these distasteful realities of feminine hygiene doesn't mean he wants to deal with them, as evidenced by the conversation we had when he saw a tampon, still in its wrapper, setting on the bathroom counter.
JT: Does that really have to be so obvious (waves distastefully in the direction of the tampon)?
Mama: Well, yes, as a matter of fact, I might need it. Would you like me to explain why again?
JT: No. That's not necessary (beats a hasty retreat out of my line of vision).
Someday, when he has daughters or a wife of his own, I like to think that they'll find that he's a sensitive, understanding man who will ensure that the fridge is stocked with chocolate ice cream at certain times of the month. A mama can dream.