[quote]=[It never ceases to amaze me how dumb some of our rich punters are insisting that we roll the dice of fate rather than taking a ride from a more sensible destination like GVA or ZRH......./QUOTE]
That TT is why you have a job! If they wanted to go to GVA or ZCH, they could get there very cheaply and frequently by scheduled airline. Neither of those airports are anywhere near Samedan (3 hr drive from ZCH and about 5 hrs fm GVA).
If you call Engadin tower before departing, in my experience, they will give you an extremely good forecast of the local conditions for the next 12 hours or so. You can go to their webcam and look for yourself if you don't believe them.
As observed earlier, this is the first fatal jet accident at LSZS; sure it requires extra care, but then so do many others in Europe.
So maybe your "punters' are not so much dumb, but expecting you to be a professional and tell them whether they can get in or not!