I gave my son a minor heart attack when I hit the "need Help" button on my SPOT.  I was back at Moose Lake landing a day or two early so thought I'd try the help button to see if I could get his attention.  I left it on, which meant it was sending a help message every ten minutes, and getting it on his phone all it said was Help, Help, Help....  ::)
He almost panicked until he saw my location was at Moose Lake landing.  He figured it out and was there to pick me up in a few hours.  ;)