When you see someone stopped at a really dangerous place (i.e. where they are not visible to skiers/riders above) and in no hurry to move what do you do?
(This thread is the corollary of http://www.epicski.com/t/146653/vail-corp-mountain-safety-warning-policy-breck-violation)
I ski a lot and see people stopped in questionable areas pretty frequently- Typically, I won't say anything unless they are stopped in an obviously dangerous spot and don't appear to be in any hurry to move. In this case, I will say "bad spot to stop" or "dangerous place to stop" as I ski by. On average, I would say I issue this type of warning once or twice a month.
Yesterday at Breck, the mountain was very empty. As I approached the lip to enter Whale's Tail at a relatively slow speed, I noticed the helmet of a snow boarder who was sitting in a blind spot about 10 feet below the lip. He didn't appear in any hurry to move and I suspect he had been there for at least a bit as I don't recall seeing him enter ahead of me. I'm tall and think that a shorter person would not have seen him him until a bit later than me. Someone travelling faster than me at the right line would take some forced air and could have landed right on top of the guy. I was able to adjust my line and avoid him, but did say "bad spot to stop" as I skied by.
The guy made some reply that I did not hear. Farther down the run, when I stopped to wait on some friends, he rode up to me and told me that it is a big mountain with few people on it/many different spots I can ski and that I should mind my own business. I explained that it was dangerous to stop in a blind spot where people above can't see you. He told me that he understood the safety issues but still thought I should mind my own business.