Very funny...

[Out_Kast]

It's not really funny.
I played a prank of my dad with the phone.
I told him it was his mother ringing;
because of which he shouted
'Hello Mother' to my uncle.

Lucky he's so gulliable http://www.pso-world.com/images/phpbb/icons/smiles/icon_disapprove.gif .

[UnderscoreX]

I did something similar once.
My cousin happens to hate my friend Mike, with a passion, so one day while my cousin was over my auntie (his mother) rang my cell cause she needed to speak with him.
So I answered the phone, "Hello? Yeh, I'll get him" then I handed the phone to him, and told him it was Mike. He then answered hte phone by saying "And what the fuck do you want!?"
Hilarity ensued, well I was laughing.