AHAHAH. I have the same experience. This year I study in Italy and every time I got angry I would complain in Chinese and nobody could understand. But I REALLY need to get rid of this. If not... the most horrible thing will happen when I get back to China!!

Jane, chill out! First of all, if I want to curse someone who has been nothing but trouble and is not doing their job properly and has broken half my things I will. Second these builders wouldn't know Chinese from Japanese, Korean or even any other language!

我明白你的感受。因为当我的学生很调皮的时候也有这样的冲动……但是这样真的不好。气着的是自己，他们听不懂。而且要为人师表，积口德，积福。

汉语是一门艺术性的语言，亲爱的，可不是用来骂人的哦。你可以多看看一些诗词，很美的。 Chinese is an artistic language. Dear, pls don't use it to name-calling, then they will hate Chinese. You'd better to read some poetry to understand Chinese culture deeply.