Getting real sick of no shows.... Does nobody have any decency these days!?

I had a tweeker try to give me a money order for this hvac unit i was selling for $300. the money order was for $500 and he wanted cash change. i declined because i saw a show where this guy would go to peoples mailboxes that had their red flag up( for postman to pickup letters, bill payments) raid the contents and then would use a chemical solution to clear out the handwritten ink off of peoples checks and money orders. Then forge and put whatever amount in they wanted. no money orders or checks for me...