Assumption
Assumptions haunt people, much more than they know. People generally deal with situations by means of assumptions.
This habit is useful, it can mean that you do not have to think. If you see a man in a khaki uniform you assume he is a policeman.
Do not make assumptions all the time, and do not let your life be ruled by assumptions.Remember the old story of a sign-writer who lost a commission because he made a wrong assumption.
A lady asked him to paint a notice about the dog to put at her front door. He lost the job because he produced one saying:
“Beware of the Dog.”
“You stupid man.” said the lady, the notice I wanted was “Don’t wake the dog”