I have just brough DD a guinea pig and we have the cage in the gargae.. but its a not a fully closed in garage.

Apparently people in my estate dont feel the need to keep their cats inside or on their own property and I have caught a few cats in the gargae.

So tell me besides leaving a not so nice treat for them to eat what can i do to make them stay away... i dont have the money to hire the councils trap. and they too fast to catch, but i have heard you can spray something that they dont like.. but dont know what that is.