Clegg, Seymour and Sherbet suspect that Mr Scrimshaw is sneaking off to the gents' fitting room to take snuff. They wonder where he hides his snuff box. The lads persuade Wally Batty to pretend to be a customer trying on some trousers. He bursts into the fitting room just in time to see Mr Scrimshaw hiding his snuff under the seat of a chair. The boys put strong pepper in Mr Scrimshaw's snuff but it doesn't seem to have any effect on him. Next, they add mouse doppings. This doesn't seem to work either, though when Mr Scrimshaw gets home he can't understand why his cat is so interested in his moustache.