"I've been a stay-at-home dad since my daughter was born seven years ago, and I can say without a doubt it has been the best experience I have ever had," Harrington's petition reads. "And there are plenty of other dads like me: According to the 2010 U.S. Census, almost a third of fathers with a spouse in the workforce take care of their kids at least one day a week. And of those with kids under the age of 5, 20 percent of dads are the primary caretaker. That's why, while I appreciate being able to save money through the Amazon Mom discount program, I don't like the message Amazon is sending by reinforcing a stereotype that doesn't apply to my family, or plenty of others."