Don't put oil or grease anywhere it shouldn't go!!!
It is a sure fire way of getting the stuff all over your gear and eventually your glass! I agree with monstar.
The tolerances that astro gear is made to is necessarily tight, and unfortunately it goes with the territory. But, some items are machined smoother than others, and that is the key to quiet eyepiece interchange. Want something cheap, well it comes at a cost. Better quality/more expensive gear does not have quite the same problem.
Doggie wise, doesn't sound like you get along too well with the mutt, so a big juicy bone is out of the question - will end up costing you more than the gear you are using. But the dog is probably reacting to noises it hears regularly, such as possums, rats and mice scurrying about the place. That might be a key to solving the doggie problem.
Mental.