I hope the walker had appropriate insurance. A friend of mine is a keen climber and once had to be evacuated by helicopter from the Eiger. Luckily, he had insurance. If he hadn't, he told me, he would have had to sell his home to pay for the cost of the rescue. Twits who go hill walking in Scotland with only a mobile phone to guide them and end up being saved by volunteers don't realise how lucky they are.