This guy does the predator sound perfectly...
I'm scared....
http://www.putfile.com/media.php?n=predatorsound

wow

IT'S MM !!, i can do the sound also, but not that perfect..

dot dot dot... ^maybe so.

My dad used to do it to our cats, they would just stare at him until he stopped.

i can kinda sound like that...but when first heard i was like "WTF!!!11"
edit: it also sounds like he might be burping

that's scary!

ah kahn doo dah! jus' naw ra now, i dunwanna luk dum infronna mah wumahn

That's weird

Cool.