Proposal: New "ends" keyword

Depends on how you set your parsing rules.

But again, you can already write syntactically ambiguous code.

But also of course, being the smart (non-masochistic) programmer, you’d never intentionally write ambiguous code you intended to use. But maybe if you’re a malicious hacker… But you can already do that now too.

Really, I think you’re getting the picture pretty good now.