I have 4 cars 2 motorcycles and a boat in front of my house. One motorcycle is in parts and one truck doesn't run. The rest are operational vehicles, although I only use one. Due to legal issues, I can't sell some of the cars and the boat. But that doesn't stop people from trying. About half of the people that ask hear "not for sale" and they understand and just walk away. Cool, I got no problem with it.
The other half? They act like you are denying them the "right" to buy things. Had a guy ring the bell, I opened the door and he asks, "Can I buy those cars for parts?" When I told him "Not for sale", he acted like I had slapped him. "But you're not using them!" I'm not "using" my fireplace. Doesn't mean I want to sell the bricks from the chimney. He left disappointed and shaking his head at my stubbornness and stupidity. It's ridiculous. I have been called a racist and other names simply because I won't sell them whatever thing of mine they want to buy. My father once had to call the police because one guy wouldn't leave.
Mind you, there are no signs offering things for sale. Still they come. One guy wanted to "take a look around to see if there was something else he might want to buy." I even had one especially entitled woman tell me that I should sell her a car for $200 as her son was getting his license and needed a car. Apparently, that's all the money he had for a car. But she felt I should take it and be happy.
I think I need to put up a sign that says, 'Nothing is for sale. Don't even ask."