It's simple, the breaks are designed for the smokers
. 5 minute breaks, the average amount of time it takes to pop out for some "fresh air". Most other things can bring along the laptop, or do quickly after folding a hand but for a nice peaceful smoke, there is nothing better than hitting that 5 minute break for the every hour craving that starts to itch at ya.
Haha, now i want some nicotine lol.