I’m sorry, but I’m sitting here cracking up and had to post about it. Watching Supernatural (don’t worry, I’m not going to spoil anything important), and someone mentions ‘phantom itch’ in passing. Basically, "all it takes is someone talking about an itch, or thinking about one, even, and suddenly you can’t stop scratching". Cue Sam and Dean both absently scratching their ear/neck. And me scratching my neck. I actually laughed out loud when I realised what I was doing. I’m so suggestible.