depends how old you are. My mom saw me playing a bloody FPS, (insurgency) yes, i tried it...probably one of the worst fps ive played. Anyways, all she did was say once i paused it: "What are you doing? playing a game your not supposed to be playing?" and she just walked away, she thinks im more mature than my age tells. She doesnt stop me, she just gets concerned.
*More details required for answer*