What's that?

I walked into work yesterday and Old Secretary asked me if I could email my timesheet to the school's email address. I told her that I emailed it a while back and she said that Secretary from Hell (on hols) had told her it had arrived, but OS couldn’t find it in my email. No problem, I emailed it again when I went home for lunch.

A few hours later, I asked Young Secretary if it had been received and she confirmed that it had (both times). I told her that OS hadn’t been able to find it before, and she looked at me and said, ‘OS didn’t know what an attachment was.’