>... it reduces the
> concentration of people around you, thus making it easier for you to
> concentrate on your work. The second effect is sometimes
My late thesis supervisor (late, meaning 40 years ago) once said that
if he didn't smell mercaptoethanol coming into the lab in the morning,
it meant no one was working. On the other hand, it clung to the clothes
almost as nauseatingly as collidine or lutidine.