Electroshock chairs in Wimbledon?

The crowd were a bunch of nincompoops today at the Wimbledon final. How about having electric chairs that register shocks to people who shout out unfunny jokes at the precise moment the player is about to serve? Is there a better solution? Let's not forget what happened to Federer at the French Open with that crazy guy with that towel. Should Wimbledon have a sniper ready to prevent such incidences?