Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.

Someone has a strange, puzzled look on his face.
Someone at the cash register, busily ringing the bell.

Trembling, he stares at it then collapses safely.
Someone's mouth drops as he thinks to himself.

A man in a blue shirt is watching one of the men.

Men are lifting heavy weights over their head several times.