"The Whistler"
From "Inappropriately Human: 21 Short Stories" by Andrew Heaton. Now available as an audio book!
Get your copy at https://www.amazon.com/Inappropriately-Human-21-Short-Stories/dp/B09S3WYDSJ/ref=sr_1_1?crid=5UO16ZY0DADV&keywords=andrew+heaton+inappropriately+human&qid=1646195709&sprefix=men%27s+modal+shirt%2Caps%2C148&sr=8-1