sentences:  The living arrangements left some slave females alone and vulnerable, and the Mount Vernon research historian Mary V. Thompson writes that relationships "could have been the result of mutual attraction and affection, very real demonstrations of power and control, or even exercises in the manipulation of an authority figure".Some slaves at Mount Vernon came to feel loyalty toward Washington, and some did not.The resistance displayed by the latter is indicated by the frequent comments Washington made about "rogueries" and "old tricks".