In addition to a misspelled error, "sic" can also be used in a more casual sense. In casual text, sic
could be used to represent sarcasm, a purposeful opposite of what is meant. This can be used to subtley get an unimportant opinion across as a pretense to a more elaborate opinion.
While Arnold, Stephen, and Jean-Claude are very realistic sic
representations of everyday heroes, I must counter that action movies shouldn't focus so hard on developing the main character, due to the average "hero's" lack of emotion and general acting talent.