Sorry, wrong number

Since the day that Telekom install a wrong number for my new phone, I kept getting calls from the 'unknown' who wants to talk to another 'unknown'. Examples are:

Call #1
Me: Hello
Caller: Woiii (Chinese slang), Ah Yen aaa....
Me: Terribly sorry, but I think you have the wrong number.
Caller: *tut* *tut* *tut* (hang up)

Call #2
Me: Hello
Caller: Hello. Ah Yen aaa....
Me: Sorrylah. Ini salah .......
Caller: *tut* *tut* *tut* (hang up)
Me: ????????

Call #3
Me: Hello
Caller: .....................(pauses for a second then .........) *tut* *tut* *tut* (hang up)
Me: %#*@!!!!!!!

Call#4
Knowing that the caller wanna talk to Ah Yen again
Me: AH YEN SUDAH MAMPUS!!!!!!!!!
Caller: .....................(pauses for a second then .........) *tut* *tut* *tut* (hang up)

Moral of the story, if you KNOW that you called the wrong number, just say sorry to the person who picked up the phone. Don't just hang up and piss that person off.