A sandwich short of a picnic?
The global behemoth which is Subway operates on a franchise basis which means that persons who are unlearned in the ways of commerce may be tempted into (ahem) "biting off rather more than they can chew". (Is it any wonder, really, that Lady Bracknell's wit is legendary?)
Quite apart from her pique at learning that she will no longer be able to pick up a Mushroom Foo Yung on her way home on a cold, wet winter's evening when she is too weary to produce something nourishing herself from the contents of her own store cupboard, Lady Bracknell is far from convinced that this particular Subway outlet has any prospect of longevity.
A successful sandwich shop is one which is situated handily for the customers for whom its goods have been designed. Ideal locations would therefore include a public transport terminus; the middle of a busy shopping centre; the fringes of a university campus; or in the vicinity of large offices. Anywhere, indeed, where the passing trade is constituted of busy people who have neither the time nor the opportunity to return to their own homes to partake of a lengthy and civilised luncheon.
Lady Bracknell's local Subway has flown in the face of the standard customer demographics by opening in a wholly residential area only yards from two supermarkets which themselves offer pre-packed sandwiches for sale. There is but one parking space outside the shop, and it is unlikely that passers by on the opposite side of the dual carriageway will suddenly be hit by a desire for a sandwich which is so overwhelming that they are prepared to go the considerable trouble of crossing both carriageways twice in order to purchase one.
Any persons walking past on the Subway side of the street will, in the main, be heading either for the supermarkets or towards an omnibus stop.
A sandwich (even a toasted one) does not a warming supper make, so it seems unlikely to Lady Bracknell that the Subway outlet will inherit the late Chinese Takeaway's loyal customer base.
Lady Bracknell makes no claim to expertise in economics. But if even she can immediately see the commercial pitfalls of opening a sandwich shop in such a location, she fears that the franchisees in question must be parlously inexperienced and at great risk of losing the money they have invested in this venture.
Of course, should the shop flourish and thrive, Lady Bracknell will gladly eat both humble pie and her magnificent hat. (Although perhaps not a sandwich.)