Both of
you, however, have forgotten your purses. It would be
totally rude to push in front of the first woman if you had
no money to pay for the shoes. The shop assistant remains at
the till waiting.
Your friend
is trying on another pair of shoes at the back of the shop
and sees your dilemma. She prepares to throw her purse to
you. If she does so, you can catch the purse, then walk
round the other shopper and buy the shoes. At a pinch she
could throw the purse ahead of the other shopper and,
*whilst it is in flight* you could nip around the other
shopper, catch the purse and buy the shoes. Always
remembering that until the purse had *actually been thrown*
it would be plain wrong to push in front of the other
shopper.
