According to Jane Austen it is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife1. Equally memorable are the by now surely-apocryphal schoolboy excuses: ‘a big boy did it and ran away’ and ‘the dog ate my homework’. When families of kids with disabilities gather on social media, an equally common trope is ‘I blame the parents’. It vies with ‘I blame social services’ and ‘I blame the…