She's a keeper

That's how my teenager described this girl he'd clicked with at the park last night in our town's Fourth of July celebration.  He went down with his friends.  H. and I didn't feel like leaving the house.  It was too hot.  What a change; every other year we've kind of gone just to keep an eye on our son.

Anyway, why is she a "keeper"?  Because she has watched all seven seasons of Buffy the Vampire Slayer.