Loud music that I don't like. Loud music I do like is okay. LOL
Or, left over from our old site on a canal that led to the lake.....
a sump pump in the canal that someone made a fountain out of with pvc pipe...sounded like a toilet incessantly flushing....I mean incessantly.
He even put a pool light underwater to light it up.....Can someone say....RN fountain?