How Two Characters Met

How two characters (PCs and/or NPCs) met or know each other [fantasy] [adventurers]

You have a mutual friend who tried to set you both up on a date.
Recently you were prisoners together and parted as friends
A couple of years ago one of you was the centre of a tournament where you met some strange characters
You are cousins by adoption
One night you got into trouble with the law and woke tied up with your clothes missing
You grew up together as best friends in a large town
You were both linked by a prophet in a prophecy
One of you was left a small inheritance by the dead aunt of the other
You lived together for a short while and had an emotional conversation
You have a mutual friend who owes you both money and is currently missing