I used at work for years and was never suspected of anything because I didn't properly messed up. The only time I came close to being fucked up at work was back when I was snorting ketamine on a daily basis. I took my usual bump in the toilet however it was slightly bigger. I went back to my desk and I realised that this was a new batch and it was hitting me hard. Luckily before I spoke to anyone I took an early lunch and went and sat in a cafe. By the time I got back I was OK. But it was a close call.
I was taking coke all day at work for years and was fine. I'd even stopin a parking lot, rack up on the dash on my way home.
Wow I used to be stupid.