Doing it for money!

Potential Lead: “Hey Justin, your friend [J] referred us to you. He raves about how you doubled his traffic and reduced the bounce rate. Would you be willing to do the same for us?”

Me: “Sure, it will cost X and take about six months of work.”

Lead: “We were hoping you would just tell us how to do it for free.”

Me: “I’m sorry, I’m not willing to do that.”

Potential Lead: “Well that’s mean of you. You should remove ‘nice guy’ from your signature because your [sic] obviously not.”