Oh that's nothing to worry about. It's normal. It's due to the effects of youth, and the instinctive impression of immortality that comes with it at no extra charge just pay shipping and handling.
Adolescent reasoning goes something like this: "Whaddaya mean this is dangerous ? Whaddaya mean I'm being reckless ? ! ? Who says ? I've been doing it for almost a week now and I haven't died yet and I don't know anybody who died from it, so it can't be that bad, and you don't know anything and you just don't want me to have any fun, and I'm just gonna keep doing it at least until I need glasses."