And he got very mad at the Korean leader, pulled a knife on him. We had to restrain him, tie him up. We weren't sure what he was going to do if we let him go. Ultimately, he was escorted down off Base Camp. Violence is not unusual.
Some people say it's because climbers' personalities tend to be deviant.
I don't think it's just that. I think it's also because the process of acclimatization, of generating red blood cells, is very hormonal. And it primarily involves estrogen, right, which is the thing that upsets women's attitudes and psychology every month. OK, here's 300 men who have PMS and really don't know what's going on. And then it all makes sense.