...the things that might fly off during disassembly and never be seen again.
The ejector assembly is notorious on 92's, and if you're going to lose something it's the ejector collar. It's a tiny metal tube, and if it goes flying then good luck...
The ejector spring can go flying as well, but that's quite a bit larger.
Also, if you don't take the precaution of pinning the hammer spring, that can go flying as well. I just use a push pin as described
here (see step #2) but in any case that's too big to lose.