Short selling really boils my grits!
It goes against the entire nature of the stock market and should be made illegal. It's one of those shifty, smart arse, techniques slimy, sophisticated wankers invented to bamboozle the average investor/trader.
IMO - highly unethical, sneaky and downright wrong.
Sell a stock you don't own at a higher price in the 'hope' of buying it back at a lower price.