Last week I was on holiday in the Austrian Alps and managed to persuade my wife, who has a fear of heights, to take a trip on a cable car across the Rettenbach glacier.
Today I heard on the news that 9 people have been killed and another 10 seriously injured on the same ride when a helicopter dropped a concrete block onto one of the cars.
Kind of pulls you up sharp when you realise that the fun we had could turn to tragedy in just a few seconds.