I’ve had players I’ve told over and over and over again: No, that is not what we want. The words “no”and “don’t” are important parts of the power of negative thinking. I couldn’t begin to tell you how many times I said to a player: What is there about the word “no” that you don’t understand? What is there about the word “don’t” that you don’t understand?
Don’t and can’t are obviously negative phrases, but putting the words into use can bring very positive results. You have to develop enough common sense to know what you can’t do and focus on what you can. Know your limits. If you can’t do it, don’t, and say so.