Blackjack!

The odds of being dealt a Blackjack from a new shuffled deck are approximately1 in 21 ( 4.83 %)

Still feel special about getting paid 3 to 2? One day Ima find this Mr. 'House' dude that keeps taking everyones money and kick his ass.

(http://wiki.answers.com/Q/What_is_the_probability_of_being_dealt_a_Blackjack)

Royal Flush!

The odds of being dealt a Royal Flush in five cards are 1 in 649,739 (0.000154%)

And that is why people cheat.

(http://thelongestlistofthelongeststuffatthelongestdomainnameatlonglast.com/odds5.html)