The Spanish have quite a long history of shooting in the streets and political violence.
Indeed they do, however, I don't believe that many believe that the spark is about to be laid to the fuse, however stranger things have happened so perhaps you are right.
Now of course from the "nuts left" point of view the fact that this all has to be laid at the feet of a Socialist Government. . . .
Then again as already said the conservative People's Party hammered the Socialists in the regional and local elections earlier this week.