I have an idea and I am not sure about it, so I would like somer feedback and ideas please.

You know that you can get something into your dream by thinking about it before you go to sleep and you get reality checks in dreams by making a habit of it when you are awake, right? Would it be possible to get a character to appear in all of your dreams who will always tell you that you are dreaming. I know that that would instantly set on an LD.

What do you think?