have to figure out a tough set up or am trying to create some trick
toolpaths that a cig always helps my concentration.

I find coffee has the same effect on me. When I worked as a programmer
for University Hospitals, if I was having trouble debugging or
designing a complex hunk of code I'd take a coffee break. Since we
didn't have a pot in the office I'd hike on down to the hospital
cafeteria. When I'd get back and sit down with the coffee, suddenly
the whole mess would make sense. I was never sure though if it was the
effect of the caffeine on my brain, the brisk walk to the cafeteria and
back, starting over fresh, or some combination of all three.

Jim Koch, Cleveland