Once the fear of having a mole dig around the house was seen as a prediction that one in the household was to die.
Now this sounds like the rumour that a molecatcher once might have spoken in a bid to secure work in the local parish. However , it was known that witches used moles as a familiar, a spirit in the guise of an animal to do their evil work for them.
So any mole tunneling around a house would immediately be considered as the work of the local witch and a bid to cast a spell over the home.
Certainly the molecatcher would have been a popular member of any community in such times.