What are the ODDS?

Unmistakebly...........from the moment I stepped in the door tonight on this glorious Northumberland spring day.....my aussie, "Libby" instinctivley knew that if was Friday......clearly by her Dad's behaviour. Do we know our animals or do they know us??? This was the question prior to this evening.
So, I got it....play with me....so the referee (the Shelitie Tori) and I began to play catch and fetch with the ONLY toy that Libby won't devour. Proud to say that I make Tori win some of the time.
BUT what are the odds.....that Gumby would arrive out of the air standing up beside her biggest rival?