What's your greatest blasphemous achievement?

In the 90's I went to Israel working for the feds, we went on a day trip to the Church of the Holy Sepulcher.. we discovered a door that was partly open and investigated to find a large empty room with two big thrones inside of it. Which I later learned were the thrones of the "Kings of Antioch." So were were taking turns sitting in the thrones and taking silly pictures when a couple nuns came along and threw us out of the room... one of them looked very angry and the other one had tears in her eyes! It was a great day!