Rats are so resourceful.
Around Christmas 2023, we had a rat in our kitchen that took us a month and thousands of pounds to get rid of.
The bastard kept chewing holes in the U bend of the sink, and ate the grounding cable for the washing machine, and the output pipe of the dishwasher, it could smell a trap a mile away, we had exterminators out, we had the drains surveyed at £200/metre, we had the council out, it was an absolute nightmare.
Basically all the professional advice was block what you can but seen as they can climb walls, walk on string, and can dig better than a mole, there's just no way to stop them once they're determined.
It was Christmas eve eve when my uncle walked into the kitchen one night, startled the poor thing, it skittled into a sticky trap (I know, I was 100% against the sticky traps), ran behind the cooker, dodged the snap traps, bounced off the radiator and then sought refuge thankfully in a humane trap. It was like something off mousehunt.
It lived in the garage over Christmas, got posted some Christmas dinner scraps through the cage, then was sent off with pest control.
We do still see some in the garden but that's because we live at the bottom of a hill so when it rains the sewers flood and they all climb out.
I use the canes of dried brambles and raspberries to put around my veg patch to deter any of the little buggers getting in easily.