Aries: getting and tattoo/piercing
Taurus: smoking
Gemini: Speeding and drag racing
Cancer: Drinking excessively
Leo: Sleeping around
Virgo: Sneaking out at night
Libra: Dating much older guys
Scorpio: Joining a cult
Sagittarius: Running away from home
Capricorn: starting a really loud garage band
Aquarius: trying hard drugs
Pisces: Skipping school