[AgX]

But seriously. I think Canon made this too complicated. If you don't have the manual (or didn't read it in time) there is no way to figure out this combination. How many people threw away that "plastic hotshoe fill-up thing", thinking it had no use? Or thus breaking open/off the battery door, not knowing the right tool was right in front of them all the time?

As said, I don't find it complicated. And to be fair: How often does one need to open that little door (I leave aside very cold conditions)? What about all those more recent cameras that necessitate a point of a pen, match, tooth-pick or alike just to have the film rewound. Not always is the apt tool bound (via carrying strap) to the camera.