I remember Eddie telling me about how there was a period at work where he would consistently receive one ring calls which the caller would immediately hand up. Apparently, his company had one of those voice command recognition systems - you know, "please say the person's name that you're trying to reach". So, a majority of the callers would initally say "hello" and since our last name, when pronounced by a computer is similiar to "oh" it would instantly direct the call to Eddie's line.
It's funny because my office just installed the voice recognition number as well, but luckily I'm not receiving numerous amounts of wrong dials or speaking.