October is not just for haunted hayrides, jack-o’-lanterns, and all-night horror movie marathons. It’s also the month set aside to highlight an issue even more gruesome and frightening than a Friday the 13th film fest—the murder of millions of cats, pigs, frogs, and other animals every year for classroom dissection. October is “Cut Out Dissection” Month, and PETA‘s youth division, peta2, is asking students to observe a day of silence…