Jesse Walker approvingly posted ("22 Floors of Freedom") a tale of squatters taking over an abandoned building in Brazil:

But after a two-decade absence, the original owners apparently wanted it back. I'm sure there's more to this story than I now know, but based on what I've read so far, I'd say cases like this are why adverse possession laws are a good idea, despite their occasional abuses.

Commenters have responded with disapproval; e.g.,

An army of vagrants, drunks and hobos steals a valuable property from its lawful owner, and this get labelled as "freedom"? Good call comrade.

Maybe Walker's right in this instance (Your thought? I've opened comments for a day or two), but he seems to have a fondness for such activities. To wit, he previously wrote approvingly of "neighborhood assemblies" (communes?) in Argentina stealing electricity (Dec 2002 edition of Reason):

The most famous of these are the neighborhood assemblies that have sprouted in the cities, especially Buenos Aires, as an alternative to normal party politics. The function and makeup of these bodies vary from one assembly to another. They have naturally attracted the usual would-be vanguards of the socialist revolution, and many are, in the words of The Economist, mere "talking shops for bearded leftists."

Others, however, have bought food in bulk at reduced prices, set up canteens and community gardens, opened neighborhood banks, negotiated with landlords and utilities, and sent their best tinkers to reconnect members to the power grid when they fall behind on their bills.

That bit about tinkers reconnecting people who've fallen behind on electric bills translates to allowing people disconnected for nonpayment to steal electricity from the grid. That's theft.