Lexur - 6:08 am on Mar 13, 2013 (gmt 0)
Ask them for a wrote plan about that, where they develop their idea.
Require them a detailed list of costs and benefits, in dollars! Say them you need it in black over white to profesionally evaluate the idea.
Once they recognize not to be an expert (actually it's just laziness) then you should say: "Your aim to help me is heartwarming but there is people who need help more than me. Go to an hospital, enter the surgery hall and say there: I have not idea nor plan but I want help you".
Maybe they understand it.