People are justifiably outraged by Ray Rice’s treatment of his then-fiancee Janay Palmer. But what’s even scarier is that one out of five men admit that they’ve committed domestic violence against a partner or spouse. A new nationally-representative study by the University of Michigan asked 500 men the following question:

 Over the course of your relationship, how often have you ever done any of these things (pushed, grabbed, or shoved; threw something; slapped or hit; kicked, bit, or hit with a fist; beat up; choked; burned or scalded; threatened with a knife or gun) to your current spouse/partner?