“Take a nettle and brush it against the head of your penis. If you haven’t got an erection so far, this should bring one on. It doesn’t hurt much, the sensation is rather good in fact. Brush some more nettles against your penis, the shaft as well. Gradually a rash will appear and little bumps. Keep going.” Come on, own up. Have any of you tried this? Or anything similar? It’s for a research project. Honest. [via Dave].