Warning: latest MODUS OPERANDI of robbery

hi,
today i would like to share or warn all malaysian about the latest operandi of robbery happening around malaysia. it is scary coz it seem like these criminal won't stop at nothing to get what they want!

anyway i got this 'warning' from my cousin fiza via SMS. so when you are in your car, if someone approach you for a tissue paper whose face or hand with blood, DO NOT wind down your windoe. they are ROBBERS! already 40 such cases happened in KL & Johor. so please inform your love ones and friends about this...