I never have either. But this past weekend, I saw someone at the Trum Taj Mahal in Atlantic City that did. She won the $14,000+ progressive on a $5 machine. About an hour later, she came back into the area to play, sat down, and hit for $20,000 on her first hand. While waiting for them to come pay her, she played the machine right next to her winning one, and hit again for $5,000. I couldn't believe her luck!