lots of people asking for gold today, so I try a new approach to have some fun. I tell the begger, "I know how to make you 1k gold. Just open trade with me, I put in the 1k gold, and you type in to your console '/run while 1 do end' while trade is still open. It might boot you off the game, but when you come back you should have 1k gold, and I will still have my 1k gold! It may take a few tries to work, if you log on and still don't see the gold, just keep running that macro until it shows up."
Tell them something like you want a small cut, and to make sure you don't tell anybody and you can only do 1k or blizz gets suspicious or some crap to make it a bit more believable. Not everyone falls for it, but its funny to watch the dude disappear reappear over and over trying to make it work.