First, you must help accelerate protons up to speed, then adjust the magnets to get them following around the ring, and finally use quadrupole magnets (which I had never heard of, so it’s educational!) to focus the proton beams. Only after completing these tasks can you push the big red button and start the LHC.
Just in case you are still worried that pushing the red button might create a black hole and kill us all, a handy website has been created to put your mind at ease. Simply point your browser at www.hasthelhcdestroyedtheearth.com for up the minute information on the status of the planet. There’s even an RSS feed!