What’s the most annoying noise?

[42chanawee046]

For me, sound of someone chewing her/his food. I can barely stand it when someone chews normally but enough loud for me to hear and that gets worse when someone chews food with an open mouth. Moreover, people talking on their cellphones in public. Worse if they're talking loudly. Worse still if they're talking about strange or inappropriate things.

Chanawee 046 4EN