Yep, and what a blister it caused, I still have the scar too. I've always been a bit over-protective of myself and everyone around me, especially children. I used to think if I'd had kids they would have grown up with a terrible complex. I don't know, maybe I've watched too much news, but when that little voice of intuition tells me to beware, tells me that something just isn't right .... I listen.
Kinda got off topic here, sorry. I do think this is a great tip, it's a very smart idea to have a phone handy for emergencies when you are outdoors, especially if you are home alone and neighbors aren't nearby!