If somebody calls your house, obviously the wrong number, but carries on to you as if they were talking to the party they really wanted, are you obligated to tell them they have the wrong number?
Here's the scenario: A guy calls my fax/DSL number, doesn't say "hello", doesn't say "is this such-and-such company?" he just goes into his spiel:
GUY ON PHONE: How much do you charge to convert a Chevy six cylinder
ME: forty-two thousand dollars
GUY ON PHONE:: It costs Forty-Two Thousand dollars to convert a six cylinder truck?
ME: Yeah, but we finance with only twenty seven per-cent interest.
GUY ON PHONE:: Man, you mean to tell me people pay that much for a conversion?
ME: They do if they want me to do it for them. That's how much I charge.
GUY ON PHONE:: I was thinking more along the lines of six hundred dollars.
ME: That's if you do it yourself. If you want me to do it you'll have to pay forty-two thousand dollars.
GUY ON PHONE:: Brother, I got to call you back about this. I just don't think I can go that high.
So here's my moral question: Was I obligated to tell the guy he had the wrong number or was it ok to let him hang up thinking what-ever-the-heck kind of conversion he wanted costs $42K?