If you somehow managed to magically avoid all hints at what happens during Game of Thrones' now-infamous Red Wedding scene, stop reading now. Because one man hooked himself up to an Arduino and PulseSensor to track his heart rate during the episode, and spoilers abound (kind of maybe if you have really good eyesight).
For the majority of the episode our friend over at Virostatiq seemed fine with a solid, steady flat line. Then towards the end, things start going awry. As far as we can tell, each major spike you see seems to correspond with (*spoilers*spoilers*SPOILERS*) the respective deaths of Rob, his wife, and mummy dearest in that final huge jump.