So, I am at this year's Boomtown Festival, 35000 attending. I have foolishly lost my tent, and all my belongings, and become separated from my friend. For 12 hours, no money, no phone, no keys. I ask a few people if I can borrow their smartphone, so I can get onto my webmail contacts lists, to find the mobile number of my friend. But fail due to drained batteries and no mobile signal. Having all but given up hope, I randomly ask a lass if I might borrow her smartphone, same reason. Fortunately, she has battery and signal.