After hearing Woz talk about how the early Macs were resistant to malware because most of the OS lived in ROM, i find myself thinking that rather than the Amiga being the last of the "micros" the Mac ended up being so. This in that it was designed more like a C64 than a PC.
* Drag the disc icon to the trash can to eject the disc.
* Pull the power cord since there were no other way they knew of to turn it off.
Mac's reputation as a usable computer was severely impacted, needless to say :).