As someone who enforces screen lock timers for compliance, if I ever found someone was using any of these hacks, my solution would probably involve writing a script to automatically lock their screen every five minutes regardless of activity until they agreed to knock it off. :P

Have you ever read the following?

https://www.schneier.com/blog/archives/2009/08/risk_intuitio...

I actually find people's risk intuition spectacularly bad. People seem to suspect their IT department will catch them and report them for things that their IT department doesn't care about, for example. Or expect that the IT department and/or supervisors may be watching their webcam, which is creepy, and really not something ordinary workplaces do.