Every time I look out the window, I see at least one - if not two - hugely fat rats. The garden is only 20ft! I think there’s a nest as these sightings are all in the daytime. We live in a very tightly packed together central city flat, so I’m not sure if the nest is in our garden, or directly behind the fence, which is a sort of patio of a shop.
If I see one or two rats every single time I look out the window, there must be 100s of them, right?! Or am I overreacting?
How do I get rid of them? Or are they harmless?
They seem quite bold. They’re often rustling about in the bushes when the children play football out there.
We have a dog and small children, so I don’t want to put poison down. Also, it sounds really horrible for the rats 
Any advice? Should I live and let live? Or are they dangerous to have running about the garden so freely?
(I have stopped enjoying going out there now too! And am paranoid they’re going to make their way indoors!)