What is the attitude of Buddhists to "repulsive animals"?
The most skillful way would be to ordain as a monk, foregoing the ownership of a house and not having to worry about it. Aside from that, the most you can probably hope to do is keep a clean house and don't let the conditions arise for  them to come to you.



Here's a good video on this issue: Ask A Monk: Dealing With Pests

This video includes advice that there are three Buddhist ways to deal with a problem:


Avoid the situation (e.g. shave head to avoid lice)
Find alternative non-violent solutions (e.g. repel ants using talcum powder or butter instead of poison; catch rats using humane traps; catch mosquitos in a cup and carry them outside)
Accept the situation and let go (mental well-being is more important than physical well-being; and mindfulness often leads to being able to resolve a situation)