The Curious Incident of the Dog in the Night-Time  (English, Electronic book text, Stephens Simon)

This is the original, unedited text of the play. There are other editions where the language has been made child friendly and so it's quite difficult to locate the "uncensored" edition. I appreciated Flipkart's description of this edition though it would help theatre artistes immensely if it is updated to include the line that the edition is the original and unedited text.