On reflection, I now feel that was a "false memory" - either that or I've dreamt it!
Either way, it's fair to say that master tailor I am not. Talk about a faff. Even threading the ruddy thing up took me about half an hour - the instructions may as well have been in Chinese. Hmmf. Anyway... when I DID eventually get the thing threaded up - within minutes I snapped a needle ... lord knows how but I did. Luckily, Andy's mother is an organised sort and there was a new pack of 3 "in the box" - the box that contained other things I knew nothing of until I started this task.
For starters, there's a stitch un-picker thing that very easily gets jabbed in your finger - THEN there's the "zipper foot"... I had NO idea what what was until I found a video, made by a charming American lady with lovely nails. IF you've an urge to make some "box cushion covers", you could do worse than give her 8 minutes and 20 seconds of your time: