I regularly bring up the subject of physical write-enable switches (that hard drives used to have). Inevitably, someone responds that it's a great idea, and their software has a write-enable setting.

The other mind-boggling thing is I argue that remote updating shouldn't be allowed unless there's a physical switch to enable it. The response is that remote updating is necessary to keep systems secure from malicious remote updates.

I have a paper sleeve that goes over my webcam when not in use.