We heard scratching and squeaking under our lino in the bathroom and actually saw movement. There's a loose floorboard which rats must have climbed up under the lino through.
Luckily we got an appointment the next day for a man to come out from the council who confirmed we have rats in our waste pipe. He couldn't find any evidence of them anywhere else in the house not even the loft but I am absolutely beside myself now. I won't use the toilet as he said they could come up it.
Has anyone used one of those one way flap things to fit to the waste pipe which prevent them from getting up inside the waste pipe? I don't even know what sort of person I would get to fit something like that. No one would want to do that job! I can't go on not using the toilet though.