I understand Whittaker's point, but don't completely agree. I don't think motorcyclists drive more recklessly with a helmet on, nor do motorists with a seatbelt on. I think another analogy would be fighter pilots flying differently with an ejector seat. Some might, but I think they're the exception rather than the rule.

As for people setting off their PLB's before they really need help, my pride would intervene. I would hate to get into a situation where I needed rescue. I don't think I would set the beacon off until I had grave concern about my ability to get out of the situation.

As always, though, I don't know if it's possible to know how you'll act in a situation until you actually are in it. You can train for it and be prepared, but you don't really know until it's for real.