A gentleman was having some physical problems and his doctor told him that he had to drink warm water with Epsom salts one hour before breakfast.
At the end of a week he returned and the doctor asked if he was feeling better. The man said that he actually felt worse.
"Did you drink warm salt water an hour before breakfast each day?" the doctor asked.
"No," replied the man somberly, letting out a sigh. “I could only drink for about 15 minutes!"
How often we assume that our listeners understand what we are trying to say. When that does not happen, we become confused as to what has gone wrong. It is always the responsibility of the encoder (the one who speaks) to make sure that his message is properly received by the decoder (the one who receives the message).