Yeah, I have always smoked before work. As long as you dont over do it you'll be fine. Maybe dont smoke more than a few hits when yor learning there system/cash regeister, or going through trainning. If you have a hard time retaining info as it is. I worked as a tile setter for 4 years, Car wash manager for a year, Masonry, Pizza delivery-2 years, Shipping clerk-2 years, Forklift Driver, Graveyard resturant cook, Dishwasher... and more... haha I move around alot. anyways, especially if you work in customer service, its good to smoke to deal with all the fucking assholes that are never happy. You'd be surprised what bad vibes rub off on ya. Make brownies to eat during luck!!!