So some person in your life thinks for one reason or another that you should have a surprise party. For the most part this may be a great idea. However, the more folks that are invited the more change that the surprise may be foiled. There is always the people that dislike surprises. Whether the surprise is a good one or bad one.
There is also the case the you figure it out and have to do a fake face. I have only had one surprise party in my life time. I was when I was named Parade Marshal for Apple Fest years ago. Surprise!!!!! How do you take it?