(For new reader and those who request 好友请求, please read my 公告栏 first).
I don't know the source of the following jokes.
They are typical of lots of stuff circulating on the Internet,
including scams, urban legends ,etc., being passed from one person
to another. But I copy them from an anonymous e-mail for the
entertainment of science net readers:
孔子印名片.....這個好笑^^