Not sure if it falls under grief but I logged in and did a round around my property and beside my mob spawner and water feature some immature user decided to build a well a Penis out of red clay 5 block structure. I don't know who did this as they do this when I am not online AND at a time when there is no staff on the server.... I removed said offending build, but as this is certainly not the first time this happened I am officially reporting whoever is doing it. I'm tired of having to go and remove offending builds from my clearly walled off property.

EDIT: While I removed the offending blocks I did mark the approximate area. They built it a few blocks off the ground so it is hard for me with my lack of dept perception to properly judge where it was.