Every now and then you hear some aspiring game developers wanting to copy or use something without treading in hostile legal waters. Unfortunately for Diego, he did just that. Diego produced a "replica" of a Montreal metro station as a map for counter-strike. The first cease order from the transportation company apparently didn't convince him, but now a threat of a lawsuit seems to have turn some heads. More on that story here.
It's an interesting subject matter because at some point we all face those decisions. Often the best choice is to replace the logo with an imaginary one and you're golden. Would you ever consider going to court to defend your "rights" over such a matter?