Like the Alabama fan that punched his TV when Clemson scored the final touchdown.
I can't remember if I mentioned it in this thread, but I am a University of Kentucky Football fan (cringe). UK has had a history of stealing victory from the jaws of defeat, in addition to many games when it simply looks like the team showed up to play cricket while the opposing players were there to play football.
Many years ago, UK was playing LSU at Commonwealth when the Bluegrass Miracle happened. A brief synopsis, for those unfamiliar: November 9, 2002 - UK made a 4th quarter comeback against Nick Saban's Tigers and led 30-27 with 11 seconds left (kicked a FG and then kicked off). LSU fielded the kickoff and quickly ran out of bounds at their own 9 yard line. A quick pass moved the ball to the 25 with 2 seconds left. LSU QB Marcus Randall threw the ball downfield about 50 yards, where it was tipped by a UK defensive back and retrieved by LSU receiver Devry Henderson who ran into the endzone for the winning TD. The cannons went off to signal a UK victory, the Jefferson Pilot feed briefly showed UK-30, LSU-27 as a final on TV, fans rushed the field, Guy Morris (UK Coach) had already gotten a gatorade bath, etc. etc.
Probably the most heartbroken I have ever been over a sporting event.
I had been outside working on fences and listening to the game on the radio. However, I went inside to watch the last little bit and celebrate the win.
I ended up throwing the remote control at the wall (and breaking it) and throwing the cordless phone (and breaking it). Neither of those things helped my feelings, but at least the damage wasn't really that costly.
I've learned over the years that I'm a lot better off to just grimace and shrug it off rather than get mad - it doesn't do any good, and it won't change anything. My wife claims that my overall temperament is leaps and bounds better than used to be - and it's something that I continue to work on each day.
That one really hurt. By the same token, I was really happy when UK beat the then No. 1 rated LSU in overtime in 2007.
At any rate, I don't take sports (or anything else, really) as personally as I used to. But I can surely identify with those that do.
Good luck and take care.