Fred, you must be a cynic at heart... takes one to know one... although I'm in recovery. When you dont have anything good to say, it's better not to say anything at all like "Thumper" wisely said. Taking a space blanket up on a tour of Whitney on a day-hike?!? You gotta be kidding me... I'm a worrywart and I'd rather leave the blanket and bring my Nikon DSLR. Get real man.