I could eat a bowl of alphabet soup and shit out a smarter statement than whatever you just said.
Let's all pat them on the back for being so original! Oh Darling, go buy a personality.
You and pictures have something in common, I'd like to hang you! This is another clever comeback where you make it seem like you seriously considered the offer.
In some cases, it may cause some confrontation.
What did the penis say to the condom? Howie gonna hide this dead body? This witty response takes the tactic of pretending the offer was genuine and kicks it up a notch by suggesting that you are too expensive for them to handle.
A Saint Bernard, that is.
Can you die of constipation? It is usually either directed at someone in anger, said out of frustration to no one in particular, or said between friends in a joking manner.
I may not be perfect but at least I am not you.