Question regarding witnesses during drug tests

I have read almost every post on this site and it seems that other than probationary drug tests, most are in private and not witnessed. I have never taken a test and am expecting one soon. I've just purchased QF plus in the 3oz bottle and just want a little more clarification. This would be a pre-employment screen and not a DOT or probationary. Has anyone ever been "watched" during a pre-employ. Any answers or help would be great seeing as this is stressing the hell out of me.

You won't be watched unless the tech thinks you're cheating. They have to have reasonable cause. Practice keeping the heat in range and you will pass with ease.

Thanks KW420. I actually should have read a few pages further on this board. There are plenty of post pertaining to this and in the future will use the search method.