Perhaps they had met by chance in some hospital waiting room.

He said they had met by chance at the party.

They met, by chance, at a summer camp in 1974.

I met him during the process of this piece, by chance.

One day, he met her by chance in a restaurant.

These three people who have nothing in common meet by chance.

The two, who met by chance on a school boat trip for their children, have become good friends.

The two women have met by chance in a movie theater.

They met again by chance in 1970 and married soon after.

I made it my business to meet her by chance.