Which reminds me of a tale from pre-H&S days...
At a rather tatty chippy, hungry customers were rather perturbed to see a mouse suddenly appear and race along the back of the range. Which was bad enough, but said rodent was being hotly pursued by a diligent mouser intent on capture.
Unfortunately though, Tiddles the mouser lost his/her footing chasing the mouse, slipped and fell into the boiling chip fat, the poor little blighter. Whereupon the cook simply scooped out the rather deep-fried late Tiddles, slung him/her in the bin, then carried on cooking without any comment...