I had someone just call me right now…

I pick up the phone, and they say something that sounds like a mix between “HA” and “HUH.”  Let’s call it HAUH.

So, I say “what?”

and then they say “HAUH” again.

and I’m all “who is this??”

and then he’s all “hauh!  oh!  wrong number sorry”

I don’t understand why someone would say “HAUH” as their first thing on the telephone when calling someone.  They sounded like a retard.