i personally don't recommend rolling at work, because- it's work. but i guess it depends on your job.
my last job was as a bellhop. the first time i rolled at work i took a flintstone, which basically did shit, i just got a little jittery. the next time i picked up, i took one at work just to see what it was like and how many to give my friends that night.
suffice to say, i absolutely tripped face. i'll never forget when it kicked in, while i was talking up a couple in their suite, and the room started ballooning around me. my highbeams were on fullforce in about ten seconds. i left them and had to go fix a phone in some old bitch's room. i stared at it without even knowing the problem- it was making a buzzing sound. i had no fucking clue, everything around me was buzzing at the time. i remember leaving with my whole body shaking, going 'dayum i'm so motherfuckin high!'
point is that a)you never kfnow what it's going to be like, and b)sometimes it can be hard to hide.
(ps- story has a happy ending, i just kept parking cars, putting the radio on, walking up newbury st. and peacing out. i went on to take three more hits that night, after work, and had the best halloween ever.
so just keep on letting it flow, that's my advice... lol)