Girl walks up our drive way in front of their car at the bottom of the drive.
Me: (forcedly and with fiercely pursed lips) HELLO!
Girl: (as if just now realising that other people are present) Oh hello... (continues walking)
Dad: Who is THAT?!!
Me: (Loudly in the hopes that the girl, who doesn't seem to realise that taking a short cut through strangers' yards is ODD and RUDE, will hear) Oh, just some RANDOM STRANGER using OUR property as a thoroughfare.
I should start charging a fee. Either that or tear down the current property separating fence and install a new one complete with prison style flood lights, sirens and weight triggered spikes...