I learned this the hard way. DO not make a decision about a sale based on a temporary emotion. Say you are tired, or frustrated, and a sale opportunity comes in your message box. Maybe you want to ignore it or pass on it because of that one emotion. Then, you look back when things have calmed down, and you realize you should have taken that order. It is okay to tell the client you will get back to them soon after revieiwing their needs.