This Guest Post is by Ikaika Chock, a shodan in the Hikari Dojo. Ikaika's younger brother and cousin also train in the dojo.
One thing that anyone should always have is alertness, or awareness of your surroundings. Knowing what's going on around you and your family could keep them safe from harm.
It's not difficult: when you step into the street, look for cars. If it's dark, make sure you can see your family. Look around; watch dark corners and doorways. If you enter a room, make sure you know where the doors are.
Paranoia is not required, just open eyes. If you always know what's going on in your surroundings, events won't take you by surprise.