There is a whole genre of two-sentence horror stories. For example:
"My father died peacefully in his sleep. But his passengers were screaming."
This will ruin your sleep: "I was home along when the phone rang. It was my employer, telling me that the company health plan was going on the Obamacare exchange."
More here: Two Sentences of Terror
For Sale: Baby shoes, never used.
CaptDMO, a sadder story I've never heard. I weep.
The knock on the door -- that of a WOMAN and her 327 lusty female friends. Let the geneticists be concerned about the progeny.
Frederic Brown wrote a lot of good stuff. It's worth finding.
I used to drink.
Now I don't.