"Dr. Watson, Doctor Watson!" I heard the excited squeak of a child, and I paused in my writing; turning around I saw Luke, one of the Irregulars.
"Yes, Luke?" I asked him.
"Jack jus' told me this… what di' 'e call I'? Oi, a tongue twister! 'Ere, 'isten, doctor! Irish wristwatch, Irish wristhwath, Irith wrishwath! Ca' yew do it, doctor?"
I indulged. "Irish wristwatch, Irish wrishwath, Iristh withwath…" I was quickly getting annoyed. This was deucedly hard. "Irith wristhwa-"
I hadn't seen Holmes come in, but he was now looking at me oddly. "Watson, what the deuce are you doing!?"