> The homeless person, say, decides to blow it all on
    > hookers and blow, and is out that money in 2 days.

This is the view of the German farmer in the article. Proponents of BI will have you believe it's a very small proportion, and that most people in poverty are not there because of blow and hookers.

    > Now what happens to him? He's still on the streets. Who
    > will take care of him? Who will pay for his emergency 
    > room visits? Who will clean up after he takes a dump on
    > the street? Who will provide him with food and clothes?

Whoever pays for it at the moment, who need much less money, because they theoretically have many fewer people to look after.