buttplug --> massive build of pressure end result you get the picture lol.Buttplug tbh...
i bet many people have had the same question to themselves, imo just hope you get a nice person as i was itimidated by some and i failed, when i passed on my *cough* time i was talking to the guy the whole time.
Good luck if you fail just remember you can retake as many times as you want not like exams.