The next time someone tries to convince you that feminism is no longer necessary because women are totally equal with men, roll your eyes as hard as you can. And then point out that, even in this day and age, "ReasonsToBeatYourGirlfriend" is something that people think is funny. It's a trending topic on Twitter. Hooray for the whole, entire world!
If you, or someone you know, believes that joking about domestic violence is okay, remind them that every time you make a joke about violence against women, Chris Brown's career gets more magical longevity serum.