Power of Suggestion

It would appear that the "Negatives", (the "No's" and the "DON'TS"", ultimately register as "Dos" to the subconscious mind.
In that,telling others to "Just say "NO" to drugs", is really suggesting and or advertising to them, to say, "Yes", or at least, to "Think" about them, where as, they were most likely not "Thinking" about "Drugs" before this was suggested to them.
As, "what is the first thing that comes to ones mind when they are told to " Just Say "NO" to Drugs?", "is it the word "No" or the word "Drugs?"
If I were to say, "Don't" think about the Olympic Rings, the color of your pants, or your past romance, "what is the first thing that comes to your mind,the "Don't", or the Olympic Rings, the color of your pants or your past romance?
If I were to yawn,you may also yawn or come close to doing so.
The "Negatives" do not appear to hold much value when it comes to "Subliminal Suggestion".
So here,one must monitor closely, how they say or suggest things to themselves and or others, as they may themselves be the cause of what they do not want themselves or others to do.
Just tell someone that they are not allowed to do something, or that they can't do something, that it is an open invitation to succeed in doing the oppocite.
Food for thought.