Helping Out a Friend

A few days ago, I received an email plea from a friend of mine. She says this:

"We've been invited to a luncheon that will have a round robin reading of poems and short stories. The problem is that years ago Derek and I read several books of short stories by an author and now we can't remember his (her?) name. The stories were something along the lines of dark comedy or macabre...not horror..just some sick twist at the end....like the main character realizes in his rage he has run his wife off the road instead of his neighbor....

I think the author was british. I think the author was male."

Anybody have any ideas? I am stumped, so it's your turn to be brilliant and helpful.