Is ‘borrowing’ wi-fi ethical?

Is ‘borrowing’ wi-fi
ethical?  Yesterday, I heard this
piece
on All Things Considered in which NY Times Magazine ethics
columnist Randy Cohen responds to a question we’ve all had: Is it okay to tap into a neighbor’s wi-fi?

As I was listening to it with the 14-year-old in my household, it led
to interesting chat.

Cohen’s take: If you pay for Internet access
somewhere (i.e., for your DSL connection) then you’ve made your
contribution to the network. So, it’s okay to use free wi-fi you may
encounter floating around. (However, don’t abuse your neighbor’s
generousity by doing anything that may clog his or her bandwidth … and you’re a mooch if you don’t pay for access somewhere.)