Death in the Clouds - Agatha Christie

"[...] Yes, a private investigator like my Wilbraham Rice. The public have taken very strongly to Wilbraham Rice. He bites his nails and eats a lot of bananas. I don´t know why I made him bite his nails to start with - it´s really rather disgusting - but there it is. He started biting his nails, and now he has to do it in every single book. So monotonous. The bananas aren´t so bad; you get a bit of fun out of them - criminals slipping on the skin. I eat bananas myself - that´s what put it into my head. But I don´t bite my nails. Have some beer?"

 

The bananas eating crime fiction writer ... I wonder if Chrstie made fun of a specific real life novelist with her depiction of Mr. Clancy.