My only “real world” experience was the time that I (and at least one other GMRS user) heard a call for help from a man who said he was in an overturned Jeep in the mountains, many miles away. When I replied to the caller, he said that he couldn’t remember his name, or the that of the trail he was on, or much of anything else. The transmission was also strong, as though near me in the city, which made me suspicious that I was being ‘Pranked’, but, nonetheless, I felt compelled to call this in to 9-1-1 on my cellphone. I never heard any more about this.