别闲的蛋疼来伤我的心
[bié xián de dàn téng lái shāng wŏ de xīn]
When someone feels bored and causes emotional distress out of trivial reasons, this idiom is created to warn against it. 'Bored and causing annoyance just because there's nothing else to do' (egg pain being colloquial), advises not using other people’s feelings lightly just for temporary fun or excitement derived from creating tension.