Well -- I am going to TRY to be unobtrusive ...... my own mil says things like -----

--but OF COURSE you are going to the Family Reunion
--OF COURSE it is alright for your husband's uncle to park his RV in your yard for a week without checking on your plans
-- OF COURSE it is all right for me to come and stay for 10 days without checking your plans first......

..those are the kind of 'of courses' I am trying to avoid.