If you’re going to drag yourself to the arse end of Canary Wharf at six in the morning and come home stinking of seafood with a pile of fish to scale and clean, you might as well treat yourself to some scallops along the way. This is, essentially, the sales pitch of Billingsgate Cafe. Well, for the punters at least — I suspect everyone who works at the market has a slightly different relationship with the place. It is, in most senses, an entirely normal caff.