One time I went basically the whole year planning to go to a big music festival in town with a friend, just to realize literally the fucking night before that I'd never actually bought my ticket (I was checking that I had everything ready to go for the next day). I then had to frantically go to grab one off StubHub for a several hundred-percent markup at like 3AM.
Then I get a call waking me up at 7 AM, from StubHub, saying that the ticket they sold me turned out to be invalid but that they'd get me another free of charge. Which was great and all but then I was completely unable to get back to sleep and had to go the whole day running on just 4 hours of shuteye.