Conservatives against Keynes: In order to disprove Keynes General theory regarding government spending as a?

I would like a liberal to prove to me that trickle up economics works. I don't know...no matter how much welfare the bums get, they don't seem to be stimulating the economy any, do they? Well, at least Nancy Pelosi thinks that unemployment benefits stimulate the economy...so you must be right. Moron.