I am making a map in which I am going to be having a wedding with a fellow clan member. I fear that several conspirators plan to assassinate me at this wedding, Kill Bill style, so I have a plan in place to stop this from happening. Firstly, I would like a button that the vicar can step on to put invisible bulletproof glass around the area in which I and the groom will be standing. Secondly, I would like another button that will cause an explosion and kill everyone inside the church. At this point I and the groom will be ubered so hopefully no harm will come to us. So er, how do I do these things?