One of the books I'm currently reading is A.C. Grayling's fascinating biography of Rene Descartes, which is unique in that Grayling proposes the notion that Descartes actually worked as a Jesuit spy for a while before fully embarking on his intellectual career.*
But how this relates to karma is this: in one part Grayling mentions in passing that David Hume had suffered a nervous breakdown while he was a young man. So I suppose it is some how fitting that I, too, would suffer a nervous breakdown.
Blogger's Note - This blogger does not, however, believe in karma.
*Apparently, spying was a natural side occupation for intellectuals in those days, given that they could speak multiple languages and they made frequent travels to different regions to meet with other intellectuals.