Not that we haven't seen text messaging save a life before, but this situation was clearly more intense than anything we've heard of in the past. British vascular surgeon David Nott was volunteering in the Democratic Republic of the Congo when faced with a 16-year-old boy that had "his left arm ripped off." With the knowledge that it was "badly infected and gangrenous," he relied on SMS instructions from a colleague in England in order to perform a forequarter amputation. Out of respect for your stomach, we'll spare you the details (believe us, plenty are in the read link), but the end result was that the boy was able to survive thanks to the text-based how-to guide. Who says messaging has no practical purpose?