Relative noise

I am a big anti noise person. I realised this when I had to work in a lab, with constant noise in it. Now even an event of dragging something on the floor upsets me when its something that can be lifted for the intended dsplacement. For such a person a coffee grinder does make a perceptible sound right. Not really, if one is busy creating a racquet of their own playing memory and losing with a 6 yr old.