Does Your Dog Hate br Wearing a Halloween Costume? As people prepare to dress up forbr Halloween, some may even decide tobr buy a costume for their furry companions. Although our pets usually comply,br professor Alexandra Horowitzbr believes they might only bebr doing so for our benefit. Alexandra Horowitz, via Metal Floss According to Horowitz, thebr wolf-like ancestors of dogsbr would use “body covering”br as a form of reprimand. It’s because of this that dogs maybr be genetically disposed to believe abr costume is a form of being corrected. Alexandra Horowitz, via Metal Floss Horowitz suggests watching for anybr signs of duress in order to make surebr your pet is as comfortable as possible. If they’re unhappy with what they’rebr wearing, try to ease their stress bybr choosing a less constrictive costume.