Another option, call the kids parents and say you think that there are some guys driving by watching their kid while the parents are gone, and that you just didnt want to see anything happen to the girl. If they care you would think they would let the kid in the house. Im no expert in child law, but Id bet its illegal to make your kid sit outside like that. Its a tough call, I dont like calling the cops for anything, but if I thought a kid was in danger Id call and feel like I did the right thing,JMO.

later