Living next to the campo we can expect wildlife on the estate. The Pedreera is teeming with all manner of insects, birds and animals including rats. The feral cat that visits our neighbours often brings rabbits and rats into their garden as presents.
Now it seems, people have found live rats, not only in their gardens but wandering into the houses. Elementary precautions are, keep doors closed, leave the covers on the drains and avoid leaving any food stuff outside which might attract them. Otherwise, you might want to go down to the ferreteria to pick up a rat trap.