Terry Bisson -- Jekyll and Hyde

Terry Bisson wrote a number of short stories, some of which were collected into two strikingly contrasting books.

• Numbers Never Lie is a delightful romp, an entertaining few hours' worth of reading.
• Greetings and Other Stories is depressing, an overall negative use of one's recreational time. The dominant theme is suicide. for starters.

Let's see -- two story collections. The bigger one is a bummer. Subtract Terry Bisson from future reading list -- the odds don't look good.