Not kidding at all. I'm sitting in an internet cafe paying 2 euro an hour for internet. And the man next to me is reading something on his computer and about every 15 seconds he makes one of these noises in rotations
or random mutterings
IT'S DRIVING ME INSANE! It's basically like Chinese water torture! I don't know when the next noise will be coming!
ugh... I just heard a wow and then a hummmm in 10 seconds!