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To the Editor.—
Dr. Zufall's letter (224:630, 1973) about the vacuum cleaner reminds me of a similar case I had, supposedly due to a dog bite! Privacy and the look of incredulity on my face brought the confession that the vacuum cleaner was being used as a novel way of masturbating, with alarming results.
Kennedy I. Vacuum Cleaner and Penis. JAMA. 1973;225(10):1250. doi:10.1001/jama.1973.03220380062027