My automobile had been running poorly. Barely running at all, to be truthful. So I took it in to a mechanic.
I told the mare it had been acting strangely lately. It would turn on, but there was always a delay and it was always jerky when it started out, though it would smooth out after a few minutes. The muffler was acting odd, too: there was hardly any smoke coming out, and what little did smelled oddly sweet.
She asked if I'd taken a look under the hood. I embarrassedly told the mare that I loved the vehicle like a family pet, but my beautiful wife had absolutely forbidden me from working on anything mechanical after the pedalthopter incident.
As I was wending my way through that anecdote, she mosied around to the front of the vehicle and popped the hood open, and a belch of green flames greeted her immediately.
"Exactly what I was afraid of," she said. "Changelings."