you were the only one who agreed to take this test to be a test subject (because you have no family or friends). The test will consist in: they will tie you very tightly to the operating table, they will put something rubber in your mouth (a rubber balloon, it will be inflated enough to fill your mouth so that you will not be able to speak or make a sound), they will connect you to your forehead and chest chest monitors for vital signs and brain function, they will slowly inject you with a fluid that will make you invisible (order of disappearance: skin, muscles, veins, nerves, guts, bones) , after you transform, they will take out something rubber, put on a collar with a bell (so they know where you are) (tighten and put a padlock), untie you and take you to a normal room (they will feed you)(the room locks with a code), and you you will decide in a month whether you want to become invisible or not, if so you will stay in this room, if not they will take you back to the room with the table surgery, they will tie you up, put some rubber thing on you and inject you with a potion that will restore your visibility. You came to the room where the test will be taken.