23 Problems Only People Who Bite Their Nails Will Understand November 5, 2014BuzzFeed - Latest I can stop any time I want. OK, actually I can’t. The answer to "How long have you been biting your nails?" is "forever". Getty Images/Hemera Darja Vorontsova The thing is, you don't even know you're doing it. britneyspearsgifs.tumblr.com gurl.tumblr.com View Entire List ›