I use smoking a pipe and often reading and writing on Forums as a break between my own projects (principally writing, editing, and marketing the manuscripts), assisting my wife who has mobility limitations, errands, household tasks, and etc. I don't smoke while driving (I'm a little one-track), walking (mostly), nor when focused on some work of whatever kind. I'm pretty moderate, about a bowl or two a day, with an occasional few more bowls, and some days off.