So we just came in from raking leaves & chatting with a neighbor. When he mentioned his daughter, 24, has been a certified sitter since age 14 or so, dh says, "There you go. What a great idea." So we tell him our situation.
He laughed and said, "Really? You want a sitter for a 17 yr old? I don't think she would even do that. Isn't he fine for a few days? I came to this country on my own when I was 17.5."
He suggested we only tell 2 neighbors: one a local police officer and the other an FBI agent. Both are across the street, diagonal from us, just for some extra eyes on our house.