Speech bubbles and dripping noises

I can't remember what I was listening to yesterday - oh yes I can, it was BBC Radio 4's 'Word of Mouth' - and they were talking about speech bubbles. In comics, graphic novels and the like.

Apparently there's a cultural difference between 'Aaargh!' and 'Aieeeeeeeeeeeeeeeee!'

Meanwhile, there is a funny (as in odd-and-mildly-disturbing rather than ha-ha) dripping noise in the corner of the room just to the right of where I'm sitting. In a corner where no dripping should be (given that the corner where the dripping noise usually is is to the left of me and then only when when it's raining) . . .

Aieeeeeeeeeee.