When should a job be left for an expert?

Here is one example:

A man stuck a butter knife into his belly in a failed bid at self-surgery to remove a painful hernia, police said Tuesday.

The wife of the 63-year-old Glendale man called paramedics on Sunday night and told the emergency operator her husband was using a knife to remove a protruding hernia, Sgt. Tom Lorenz said.

“She said he had impaled himself with a knife,” Lorenz said.

Officers found the man naked on a patio lounge chair outside his apartment with a 6-inch (15-centimeter) butter knife sticking out of his stomach.

The man’s wife told officers that her husband was upset about the hernia and wanted to take it out.

While waiting for paramedics, the sergeant said, the man pulled out the knife and stuffed a cigarette he was smoking into the bleeding, open wound.

Here is another: