I hear you on the standing. Every other mammal besides man that I have ever seen assumes the most comfortable and lazy posture available in my experience. If you were standing around the fire, I'm sure a lot of men would say, "What the fuck is your problem? You are making us nervous, sit down fool."
"Ah, those endless forests, and their horror-haunted gloom! For what eternities have I wandered through them, a timid, hunted creature, starting at the least sound, frightened of my own shadow, keyed-up, ever alert and vigilant, ready on the instant to dash away in mad flight for my life. For I was the prey of all manner of fierce life that dwelt in the forest, and it was in ecstasies of fear that I fled before the hunting monsters."
Jack london, "Before Adam"