Oh, man, P.B.. You made my day!
I had a very similar incident one day, except I didn't think to throw anything. They only left when I started banging my head on the tree I was sitting in... litteraly. The nice thing was that it was close enough behind my buddy's parents' house that it was witnessed by his sister. His dad, then made sure to cook up a pan of eggs and sausage so that I had to sit through breakfast while they all mocked me before I went home
.
Oh, and that is a really nice looking quiver.