I recall learning that a certain language, Korean I think, has a particle which expresses sarcasm. I think it was da, because it reminded me of the English expression "duh!". Anyway, do any other languages share this phenomenon of being able to write down sarcasm or other moods which aren't expressible in English. This does have some level of relevance, since when writing in English people have often got the wrong end of the stick when faced with a sarcastic remark and the consequences have been less than good. In other languages, perhaps some written information can be relayed more efficiently.