I just wait till my kids start bringing up something silly like "I'd sell gas for $.25."
So you'd buy it for $1.50 and sell it for $.25?
Well, no. Ok, but I'd sell it for what I had to pay for it.
Really? You're going to sit there all day long and sell people cheap gas without getting paid? You're going to pay for the pumps and building, too? That's pretty darned generous.
Well, no. I wouldn't do that.
Welcome to Capitalism, my child.