Sometimes you get clobbered by an inspirational guitarist or songwriter that comes from a direction you don't expect. Imagine that happening in your own house, and that person being one of your kids?
5 years ago my oldest learned how to play the guitar at a summer camp, and kept it secret for a while, eventually getting the nerve to ask for a guitar and lessons. He's been shy about it ever since, playing in his own room, mostly metal and punk. It turns out he's a great songwriter and has been recording songs with an old acoustic guitar and putting them on myspace. He's really good, and sings well. In fact I didn't recognize it was him when I first listened to it.
But the kicker is that he's writing and performing songs in open tunings, and he's a monster in dropped-D. Completely self taught from listening to CDs and downloading tabs off the web.
Out of respect for his privacy I won't publish his myspace address. But, *crap* he's good.