Drogba's Dance of Death

After watching Didier Drogba of Chelsea feigning injury by doing some kind of breakdance while laying on the grass after a minor collision with West Ham's Matthew Upson today, I was wondering if the Premier League should bring in a fifth official who would be able to come on to the pitch and shoot supposedly seriously injured players in the same way as they do when horses have broken their legs during a steeplechase.