You have obvisouly not seen the episode where he drinks half a canteen of his urine because he has no water. This accellerates dehydration which is not good in a survival situation. It's the Austrailia episode. Not sure that was very good advice, but then I am not an ex-special forces guy and I have never tackled Everest so....
In that same episode (and I enjoy the show by the way) - he caught this snake, and was like, "food spoils in half a day, so you've got to keep it alive until you're going to eat it." At the end of the day, after hauling this snake around with him everywhere (prolly a 4 footer at least, pretty big snake), he gets to a river, and says "it won't mind getting wet as long as you keep its head above the water" and he swims across this stupid river w/ one hand while keeping the snake's head above water. Then he gets out of the river, takes like two steps, grabs the snake by the tail, swings it trough the air, and smashes its head on a rock, killing it! I don't know why he didn't just kill the stupid thing, then swim the river, as if 5 minutes would have made a difference. From "he won't mind as long as I keep his head above water" to dead in 5 minutes <img src="/ubbthreads/images/graemlins/wink.gif" alt="" /> I thought it was funny.