cc @steveklabnik

What I'd really prefer is a better example, but I don't mind changing this to say that if you feel it's better.

I prefer my phrasing, but it's just that: a preference.

I've spent an hour trying to formulate a better example, but can't think of one. The real-world examples I can find where dangling pointers actually caused problems are all far too subtle or complex for an intro. Which is kind of the point being made, ironically.

I slightly prefer the new version.

Regarding a better example: how about returning a const reference to a container-member, then modifying the container and then trying to use the dangling reference? That feels less contrived and using const references opposed to pointers is nearer to best practise.