Anya's balloon!!!!!

Dominic, Pia, and Daddy went to see Myer's Christmas Parade.  It's an annual parade organized by Myer Department Store.  I guess it's equivalent to Macy's Christmas Parade in the US.

Before the parade began people handed out red balloons to all the kids.  All the balloons looked the same and there was no way to distinguish one from the other (that the balloons were identical is central to this story).

When the parade finished, we started walking toward the train station.  As we walked, more and more people started leaving the parade as well. 

Daddy, afraid that the kids might lose the balloons, took both balloons and held it.  It soon became crowded, and Daddy  noticed that one of the balloons had fallen off its stick.  There was no way to go back for it as the crowd didn't allow any mobility except forward:

Daddy : (to the children) Oh no, one of the balloons fell off!

Pia: (quickly doing the math: 2 children + 1 balloon = one child with no balloon, staked her claim).  Daddy!  You lost Dominic's balloon!  Now Dominic has no balloon.  How can Dominic find another balloon!?!?

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