Caregivers should take notice when an adult shows up uninvited at children's gatherings or knows unexpected details about a child's life.

That research has, except for the unexpected detail, been done long before.

"Well, there are always unexpected details of situation," he said, "and also complications of terrain."

Before long, they are forging a friendship based on the most unexpected details, like the fact that each knows how to walk on his hands.

It is one of those unexpected details that make all the difference.

During the overhaul, small, unexpected details about the neighborhood revealed themselves.

That unexpected detail didn't help him, of course.

The members of each generation are allowed the freshness of unexpected detail, even as they keep to the family script.

An unexpected detail illustrates the new atmosphere: human rights groups have not documented a single political killing during the last year.

In January 2011 the trust delayed the consultation because of "unexpected details that need to be resolved".