My daughter's been concerned about my safety when I'm working alone in my wood. She got talking to a friend of hers, who I think must be a Forestry Commission manager or similar, who says that he kits out all his forest workers with something called a Spot - I think it's this gadget here (http://www.findmespot.eu/en/index.php?cid=100) or one of the same firm's other devices.
That looks to me completely over the top. My woodland's only 6 acres, so I'm not likely to be unfindable. I don't use a chainsaw, and I don't climb. I have a phone with me, and can give a location reference if do I need an ambulance. At a pinch, I guess my wife could use Apple's Find my Friends app to trace me. And if I'm going to drop dead of a heart attack, I can't think of a nicer place to do so.
I'm not sure these arguments are going to convince my daughter. How do other SWOGgers reassure anxious relatives that they're safe, or that they can call for help if need be?