I love the way the mind works, particularly how we respond to language.
Did I tell you that I play tennis? I learn a lot from it, especially doubles. I was playing recently and my partner and I were both at the net as one of our opponents wound up for a powerful shot. Out of the corner of my eye I saw my partner retreating and I shouted: “Don’t back up!”. After the point she asked me – “What did you say, all I heard was ‘back up?’”.
So the whole point of my intended instruction/request/suggestion was lost. Worse, my partner heard the opposite. I know this, but its is illustrative. The mind, particularly under pressure, filters out “Don’t” a lot of the time and all you hear is what you are supposed to be avoiding.
For example: “Don’t think of a Red Elephant”. What do you bring to mind?
So what should I have done differently? In the case above, how about: “Stay there!” That is more direct and gives a positive instruction the brain can easily interpret.
This applies to many situations in life. Try telling people what you do want them to do, rather than what you want them to avoid and you may find you get interesting and positive results…