Wow. Not sure how I would've handled that situation. Doubt I'd have pointed my gun at a couple of teenagers though. Thank god my daughters are still 10 and under. I'll start planning now.
I'm thinking that sitting at the kitchen table cleaning the gun collection will probably be enough to ensure they aren't trying that crap in your house at least, but at the end of the day, if a girl is going to start shagging there's not much you can really do about it unfortunately. I have a daughter who just turned 10 also, so I'm right there with you!