I went to Vegas in February last year, got there late at night. I got up the next morning, went to breakfast, then went straight to the MegaBucks slot machine to play my daily $21 there (it is $3 a pull, and I always do 7 pulls a day to try to win the $12M). On the third pull I won $5400. I had been playing for less than 5 minutes.
Pretty much ruined gambling the rest of the trip, because I knew I could only lose the money I just won. But I had a good time anyway.
Another time I won $300 on the MegaBucks slot at the Venetian. And I won $250 on the MegaBucks at TI. I do pretty freakin well on the MegaBucks.
I like to tell people I lost 40,000 in ten minutes at the casino. Of course I was in Seoul, and it was 40,000 Won, which is about $36.