I've thought down lines like that, too. Then I ask myself how I draw the line between who's a kid and who gets decapitated, and why anyone else should trust my judgment. After that, I just feel like violence is futile in that it will always produce motivation for more violence, and probably end up hurting more kids, the opposite of what I claim I want.

Instead I reaffirm my commitment to actual sex and emotional education, and easily accessible birth control, and access to abortion. I figure threatening to decapitate people only makes people more fucked up, not less.