Loughner 's rants , recorded online and by friends and classmates , have to do with some things that might be associated with the right , like his call for a return to the gold standard , some things that might be associated with the left , like his anger over the dissemination of Bibles by the U.S. Army , and some things that are not associated with anything , like his grammar obsession and a mathematical tic that seems to involve prime numbers .