I wish i did! i find the sound of the filter to be really comforting and help me to focus and relax. I fostered my exroommates turtles for a little and found myself spending a lot of time out in the living room where i could hear the sound of their filter.
Use to my dad always had a tank in the house for as long as I could remember there would be MANY nights I would fall asleep on the floor as a child watching the fish swim in the 55gal tank we had. I had a 20 gallon in my room last year and the ONLY reason it got set back up was because my ex an I won fish at the fair. Needless to say we went to the store an bought more but they died not long after we got them.