Grey Hat Hacking - Ethical Hackers Handbook

So you forgot the password on your own network, or don't have neighbors willing to share the Wi-Fi goodness. You could just go to a café, buy a latte, and use the "free" Wi-Fi there, or you could simply crack the passwords to the neibs wifi yourself.

This is just one example of the types of things you will learn in this guide to ethcial hacking.