Every dog has its day. 凡人皆有得意时。
Let the sleeping dog lie. 别惹是生非。
Don't rock the boat.别惹是生非 。
Never wake up a sleeping dog.别惹祸上身
Everybody's business is nobody's business.管事的人多了，等于没人管
例句：
Don't always start something when everything is running smoothly. 当一切都很进行得很顺利时，不要总想惹是生非
Don't tell others. Let sleeping dogs lie.
不要告诉别人。莫惹是非
My brothers is ill-tempered and always stirs up trouble.我弟弟的脾气很暴躁，常常惹是生非
