Protection from predators

http://www.google.com/search?tbm=isch&hl=en&source=hp&biw=1024&bih=629&q=knife&gbv=2&oq=knife&aq=f&aqi=g3g-s1g6&aql=1&gs_l=img.3..0l3j0i10j0l6.757.1732.0.1949.5.5.0.0.0.0.257.878.1j3j1.5.0.eish.1.0.0.dxtXoRmDRAc

knife

https://www.google.com/search?hl=en&gbv=2&tbm=isch&sa=1&q=gun&oq=gun&aq=f&aqi=g10&aql=1&gs_l=img.3..0l10.71202.71511.0.71751.3.3.0.0.0.0.482.482.4-1.1.0.eish.1.0.0.iBqQj3iSpxY&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&biw=1024&bih=629&ech=1&psi=kw29T83IMuHG6AH52_En.1337789867590.3&emsg=NCSR&noj=1&ei=kw29T83IMuHG6AH52_En

gun

https://www.google.com/search?hl=en&gbv=2&biw=1024&bih=629&noj=1&tbm=isch&sa=1&q=karate&oq=karate&aq=f&aqi=&aql=&gs_l=img.3...37121.38135.0.38395.6.6.0.0.0.0.0.0..0.0...0.0.PRfBQR4kvyk

Martial arts- example ...Karate