No.. if people did this all the time then the world would have a lot less idiots in it. Contrary to the "popular" belief that CNN shoves down your throat very few people mimic the things they see in the media. But when someone is stupid enough to light himself on fire or something, it turns into a huge story so that all of America can place the blame on a big bad immoral corporation.
It's really not a big epidemic, people don't train themselves to kill with video games, or learn to shoot a machine gun by watching Rambo a few times. Normal people, the people who DO end up doing this shit were completely retarted in the first place.