Bottom line, if you're doing something illegal, go to whatever end you need to to cover it up. You'll be OK if you do.
If you do it and people find out, and you end up in trouble for it, you have no one to blame but yourself for being sloppy.
If you do it and people find out, and then you want to act like they're the ones with the problem and not you, you'll find out that it just steels their resolve to make sure you don't do it. And trying to intimidate them/harass them into letting you alone typically just makes the situation worse.
Jess