Death was an unnatural event that infuriated the victim, which was why you had to watch out for the vengeance of the dead.

Washington denied any involvement, while Israel, whose military chief had warned Iran on Tuesday to expect more "unnatural" events, declined to comment.

However the unnatural events that occur thereafter have a profound effect upon him and his relationship with his partner, Karen.

Because a sign must be startling or deviant to have an impact, monstrum came to mean "unnatural event" or "a malfunctioning of nature."

Perhaps someone is planning a moped delivery of an "unnatural event" to Ahmadinejad.

An Israeli military chief was quoted this week as saying cryptically that Iran should expect more "unnatural" events in 2012.

We have not seen the last of these unnatural events.

But the film walks through its three separate stories without suggesting how these unnatural events are connected to our real fears.

Or this from Mr. Perot, who seemed particularly keen on policing the interruptions: "Please, let's have an unnatural event and try not to interrupt me."

How did this unnatural event happen?