magic money tree

aggravated, when you put an add on craigslist telling a need and saying you don't have any money to pay for said needed item, people email you saying " i have said needed item, but it will cost you $50 and then another $20 for delivery" why do they think they don't need a punch to the face?? i mean i said right there, we have UNDER $5.00 where do they think the other $65 is coming from?? sorry i don't have a magic money tree growing out my butt i can pluck funds from anytime i want to. grrrr