Ha! Toasters. I can see that I guess.
Seriously if they just dont get it and cant be trusted by themselves then may I suggest a program for them to try?
http://www.webroot.com/wb/products/spysweeper/index.php
Spysweeper. It has real time monitoring capabilities and prevents hijacks and all that. One excellent purchase. Maybe it will help them and help you not be over-run with ""Help!!" calls.