No, not 15 minutes of fame, I have never had that experience.
I have, however, been having a weird dream lately. I don't sleep much. My normal routine is bed between 2 and 4am, getting up at 7:30 for work. And this goes on and on. On the weekends, I usually try to go to bed just early enough that I can fall asleep without hearing all the people around me getting up and being noisy, so 4 to 5 am, but I do sleep in on the weekends until 11 or 12.
Well, I think lately I have been getting just a hair less sleep than I need. I have been waking up at 7:15, and in a half awake/half asleep state, I convince myself I can travel in time. But only for 15 minutes. So, in this theory of mine, I can travel back in time 15 minutes, go back to sleep for 15 minutes, half way wake up, and do it all again. As many times as I would like.
Of course, 15 minutes goes by and my alarm clock wakes me up, so I guess so far it hasn't actually worked...