RE: giadia
I grew up in the mountains, and was a member of the Big Bulls school of thought for many years. Then I got giardia. You're really rolling the dice when you don't purify water out there.
It's like that moron who thought bears were his friend and went around selling his unique line of b.s. for years. Then one day the bears ate him. They ate his girlfriend, too.
(P.S. Don't think I'm calling Big Bulls a moron, 'cause I'm not. I've read too many great posts by him in the past. I just think he's a little off base on this one.)