I fine it so amazing how many people do not secure their WAP's. I don't even know why I pay for broadband anymore, when I could just get it for free in the comfort of my own home. The way I look at it there are 3 ways to deal with unsecure WAPs.

1. Do nothing and use the hell out of it.

2. Connect to the router, see what machines are on the router and net send them a message telling them that their router is unsecure.

3. Connect to the router, change the admin password (odds are it is default), and lock the router down so that only your mac address can connect through it. This way is fun, but not very nice. It as also a waste of a good WAP.