There have been two games that fall under this category for me: 2008 CL Final (I taped it because my friend, who is a United fan, had a baseball practice for our school that day) and the 2009 CL semi 2nd leg against Barca (I taped that one because my friend who kind of likes Barca wanted to watch it when I did). I shut off my phone and anything that would connect me with the outside world, and I have never been more on edge my entire life. Many of my friends who were watching on both days knew the results, and were teasing me the whole time. Given the outcome of each of those games, I think it's safe to say I've learned my lesson.