The concept of 'odds', being statistical, doesn't really apply to single observations. Derren Browne did an excellent programme on this - 'The System' - where he appeared to show a single observer that repeatedly beat the odds, and better still explained how and why it worked.

Or as Jeff Wayne (?) had it: The chances of anything coming from Mars/Are a million to one./But still they come."

Or, more seriously, why floods with an annual 1 in a 500 chance of happening still do occur, and sometimes only a few years apart.