It all depends on what works for you and your Master.

I work overnights and when I come home I have a few things I have to do but David is always willing to help me. Because he understands that I am only human and I need rest too.

Yet I do everything when it needs to be done, therefore he is more understanding when I dont feel good or if I had a really rough night.

Its something you and your Master have to talk about, everyone is differant.