You should know a man seven years before you stir his fire proverb
If someone says "you should know a man seven years before you stir his fire", they mean that a person shouldn't get involved in another's affairs and should behave with caution until he/she has got to know that person for long enough.
It's necessary for you to bear in mind the proverb "you should know a man seven years before you stir his fire", kids. It's really annoying when you ask a stranger about their private life.
David is a talkative guy who is oftentimes free to ask people about their domestic affairs. Once he was yelled at by a woman with saying: "you should know a man seven years before you stir his fire".
My father reminded me: "you should know a man seven years before you stir his fire" when he was afraid of my interference in a stranger's business.
The proverb was first recorded in 1803 in "C.Dibdin's Professional Life".