My parents always got calls for either the animal hospital or the fish commission. Our number was xx5-5xxx so what happened was people just pressed the 5 too hard and got us instead.
At my old number I continually (and I do mean CONTINUALLY) got calls for Harvey Adams. I finally one day said to a caller "who IS this guy?" It turned out he was the immediate past president of the local NAACP
among many other things.