Right, you should probably feel bad, because you're a mother, but also, I'm sure this sort of experience is good for Euan :)
It's the sort of story you'll be able to tell with glee in forty years' time, when the grandkids are complaining about how hard their life is. "When your dad was a kid, I'd just put him in the stroller and go running in the snow. And that's how he turned out the way he did."