Are we worried about the Large Hadron Collider being turned on?

The fact that people are able to joke about something like this truly boggles my mind. Yet in any thread about it, at least half of all the posts seem to be jokes. Maybe this is some extreme form of gallows humor, I don’t know.

Yeah, maybe you’re more likely to die from being hit by a car or choking on food. Does that mean that you should DELIBERATELY go walk into the middle of traffic, or shove a huge piece of food down your throat and choke yourself?