In a book like this looking at future issues, you could certainly have a problem with the whole thing being decidedly downbeat.
This is certainly not the case with Wentworth's story. Here, a new reusable bottle proves to be on a par with The Talkie Toaster in Red Dwarf, except smarter and with more uses - although the two devices likely would get along well.
The story told via a hapless husband who buys one to drink with at his local bar without knowing what he is getting into.
4 out of 5