Mock me

So my son in the middle of Pizza Hut turns to my sister and says Don't Mock me! So laughing, we ask him where he got that from and apparently Ben 10 says in an episode I will mock anyone who uses the word mock. So my sister thinks that I am at home teaching him these words since the last time she was over he said to her "defeat is inevitable!" Moral of the story..although some superheroes may have questionable values, their vocabulary is fantastic.