Pardon the page you're seeing right now; we're in a maintenance window.

That doesn't mean we're maintaining windows though. Or the Windows operating system. Our windows are all intact and we don't use Windows.

It's not some abstract thing either, like a "frame of mind" or "train of thought." Come to think of it, calling it a "maintenance period" or "maintenance interval" would be more appropriate.

Anyway, we're in a maintenance window. We'll be back shortly.