I asked a friend of mine to bring me a watch from the country where he is living, as he was coming to the country where we are studying. In the airport, by mistake someone took his suitcase, and after communicating with the brother, the suitcase was returned to my friend, but the watch was not in the bag, as it had been stolen. We were not able to make contact again with the brother who had taken the suitcase by mistake, and the airline company will not compensate us for the price of the watch, because when my friend filled out the form to report missing items, he forgot to list the watch among the things that were missing.
My question is:
Should I pay my friend for the price of the watch? Please note that I gave him approximately three quarters of the price before he went, and I said to him: When you come back, I will give you the rest of the money. Or is he the one who has to return the money to me?