I was in Brazil for my job, for about 3 weeks. At the end, I took the opportunity to take some leave days and travelled a bit. I did not leave any schedule or such with my family, nor with my company. Only it was known when I would fly from Rio to Amsterdam. So, when I was on the airport of Rio de Janeiro, I was frightened when I heard my name announced in the loudspeakers: I had to report at some information desk. I was afraid my family was searching for me and I expected bad news. The news wasn't bad at all. I was travelling on business class and due to some last minute upgrades, they ran short on business class chairs. The request to me was if I had any objection to be upgraded to first class. I had no objection.