My brother-in-law Adam has a habit of taking his kids on hikes around my cabin property in North Central PA and just kind of disappearing. Not in a dangerous way. Just in the way that happens when you’re on 30-something acres with ridge lines and creek draws and thick second-growth forest. Cell signal up there is garbage on a good day and nonexistent once you drop off the high ground. So there we are — me at the fire, him somewhere on the back trail with four kids between us — and if somet