Now what age liao? If you really afraid of someone attack you, you can get legal equipment like SureFire’s E2 Defender flashlight where you can blind your attacker you can get it @ John 3:16, 5th floor of Funan Center.Link: http://www.funan.com.sg/stores_lvl5.htm .Alternately you can get an shrill alarm or an whistle against your attacker. Also do take notice that pepper spray is banned in Singapore law, so say I didn't warn you and get it.