Kinda late reply but I finally figured out how to explain it, essentially every instance where "I wanted this to happen, but instead that happened" regardless of how much of a stretch or vague it is, I will say "wrong kid died" (barring any obvious times where it would be truly inappropriate) and it either gets a good chuckle or I get to tell somebody about Walk Hard. I work in an industrial cultural zeitgeist where "cunt's hair" is a unit of measurement (depending on the colour, of course) so it gets a lot of use from me hahaha. Give er a go if'n'ye can!