The second most horrible sound in the world is Tricky, post yum cha (or dim sum), shrieking from his cot as he refuses to take his nap. He is the Screaming Tomato but with added dumpling hysteria.
The first most horrible sound in the world is the screaming, as noted above, followed by a sudden thump and then silence.
Somewhere further down the list is the sound of his mother racing up a flight of stairs muttering ‘oh my god’, closely followed by sound of same mother blubbering on the floor as she hugs her slightly surprised but undamaged toddler.
And somewhere near there is the sound of his father who was on the computer in the next room saying pathetically “Oh I thought he was downstairs with you…”