“Don’t forget the diver”

“Don’t forget the diver” works both as an old radio catchphrase and as John Wigfull’s pointed reminder about the divers’ work. Julie Hargreaves first hears it as a barbed joke about her boss; when she passes it on to Peter Diamond, the phrase leads into news that the divers have finished their job and recovered Milo Motion’s keys from the canal.

The canteen exchange

Wigfull delivers the phrase in the police canteen, where Julie is trying to finish lunch before returning to work. She sees him approaching with a tray and would rather leave, but still has most of her tuna salad and yogurt in front of her. He pulls up a chair and, without lingering over pleasantries, brings up the divers. His remark that Diamond has mishandled them turns their assignment into a joke: the water is only a few feet deep, he says, so the work is more like wading than diving, and the divers have not been pleased.

Julie minds Wigfull’s intrusion and the criticism, but she knows he will not go away simply because she objects. She defends Diamond by insisting there was never any question of forgetting the divers and that the work was always going to take time. Against this exchange, the phrase is not a neutral bit of nostalgia. Wigfull has just made the divers’ supposedly undemanding assignment his subject, and he uses the catchphrase to sharpen the dig rather than soften it.

An old radio formula

When Wigfull calls after Julie as she carries her tray back, he makes the message explicit: she is to tell her boss what he said, “Don’t forget the diver.” That instruction gives the phrase a second function. It is still a joke, but it is also a message deliberately passed from one officer to another, and Julie later repeats it to Diamond rather than leaving it behind as canteen banter.

Diamond recognizes the wording as a radio catchphrase. He recalls the routine of comedy characters repeating set phrases week after week, and names Ray’s a Laugh, Take it from Here, Educating Archie, and The Goons as programs he enjoyed. He places this particular catchphrase earlier than both his and Wigfull’s time. Julie has looked it up and identifies its roots in the 1920s; Diamond connects it with ITMA. The exchange establishes that its familiar sound belongs to an older broadcast culture, not to a phrase either man remembers from his own childhood.

Julie carries the message

When Julie tells Diamond what Wigfull said, Diamond responds with recognition rather than alarm. Julie dismisses it as Wigfull’s idea of a joke, and Diamond asks whether there were any others. She says the diver line was the only deliberate one, though she also mentions Wigfull’s unintended joke: his expectation that he would take over the case. Diamond laughs, and Julie reminds him that Wigfull took over once before, only after Diamond resigned. Diamond answers that it will not happen again.

The exchange places the catchphrase inside the officers’ rivalry as well as the dispute about the divers. Wigfull’s jibe about Diamond’s handling of the job reaches him through Julie, who initially had reservations about passing it on. Yet Diamond’s easy response, followed by their joking about who will control the case, lets the message sit alongside their professional sparring without turning into a confrontation. The phrase travels intact from Wigfull to Julie and then to Diamond, changing from a canteen barb into an element of their conversation.

The keys and the diver’s work

After the exchange, Diamond opens a desk drawer and drops a rusty object onto his desk with a metallic clunk. It is a bunch of keys: the reason the divers had contacted him was that they had completed their work. Diamond identifies them as the keys Milo Motion dropped into the canal. The timing gives Wigfull’s repeated reminder an immediate practical echo. The divers were not merely an object of complaint or a target for a radio joke; their completed search has brought back a specific lost object.

The phrase does not itself explain how the keys were found, and the scene does not establish that Wigfull knew the job was about to be completed. Its significance lies in the sequence: Wigfull insists that Julie tell Diamond not to forget the diver, Julie does so, and Diamond then reveals that the divers have finished and the keys are back. The comic repetition and the material result meet in the same exchange, turning an old catchphrase into a small hinge between workplace banter and the case’s evidence.