Enjoy tea and cake while sitting next to the tanks that hold the catacombs’ 18-strong rodent population.
Then, once you’ve chowed down, wash your hands (you don’t want sharp-toothed rodents mistaking your hands for food, after all) and the resident rat carers will bring the little critters over for you to play with.
To drink, there are cups of “rattaccino” or “ratte”. To eat: “black forest rateaux”, plus there’s also the chance to indulge in (wait for it) “car-rat cake”.
Looks like it might have been a one-time thing, unfortunately.