Ryanair B738 near Zurich on Feb 6th 2012, loss of cabin pressure

[Basil]

Subject, of course, to terrain:
It is common to ski at 12,000ft or more so sitting down at 10,000ft shouldn't be a problem.
Don't forget that the cabin altitude in the cruise will be 6,000 - 8,000ft.
Looks like a good decision.