Holiday Odds

The game of odds played when on holidays, where the probability is equal to 1 over the number of days left on holidays.

Example:
When there is 2 days left on your holiday so once called on odds you must do 2 to 1.

Guy 1: Holiday odds you'll ask that girl for her number?
Guy 2: Ok 3 to 1 so?
Guy 1 &2: 3..2..1.. 2!