Eh, in this day and age such things are easily manufactured, sadly because of the fact that such stupid incidents do occur with varying frequency. Thus, since such attention is drawn to these incidents and also to the possible fakes then a misleading perception of their frequency is given by the media. Still, such things can and do happen, and how often they do is often in the eye of the beholder.
In short, take all things with a truck of salt, especially if it's on the internet or in a newspaper.
