While I always strive to tag any material that may contain spoilers as such, many don't realize that knowing what's going to happen actually makes the experience of watching it more enjoyable as this U.C. San Diego study shows:
Admittedly, the difference in enjoyment between spoiled and unspoiled isn't huge, so it's almost just personal preference, but even though my short hasn't been released to the public yet, anyone who does want it spoiled before they see it can go over to IMDB, where there is a full-spoiler summary of what you'll see in the film, so all you spoiler enthusiasts can flock over there!