Going to bed the other night, I noticed people in my shed stealing things.
I phoned the police but was told no one was in the area to help. They said they would send someone over as soon as possible.
I hung up. A minute later I rang again. "Hello," I said, "I called you a minute ago because there were people in my shed. You don't have to worry now, because I've shot them."
Within minutes there were half a dozen police cars in the area, plus helicopters and an armed response unit. They caught the burglars red-handed.
One of the officers said, "I thought you said you'd shot them." To which I replied, "I thought you said there was no one available."