I’ve had one surprise party thrown for me by a few friends before I went off to college. Nothing fancy, but really nice. They cooked me a vegan pizza, and made me presents and gave me some awesome candy. It was one of the nicest thing’s anyone has ever done for me. And I’ve thrown quite a few surprise parties for friends. Sometimes for no special occasion, but just because I think they are awesome people that deserve to be appreciated every once in a while.