We have the same thought, in these cases so important in life and the realization of my idea, there must be the signature of confidentiality. In this way I will have my idea safe from any attempt that the investor may have against me.No body can be trusted sincerely speaking,to me I will have them sign it,when money is involve I do not trust any body,if truly they believe in the actualization of my dreams then they should not have any problem of signing the document