Japanese warning signs are very different than warning signs in other parts of the world, because they usually contain a visual and easy to understand reason why something is dangerous or not allowed.
In Japanese, O is a prefix denoting respect, and bakemono literally means a changed thing - something perverted and altered and moved beyond its natural state - a monster.
A copy of Aestheticism's very useful guide to sound effects in manga. Originally designed to explain onomatopeia in their Yu Yu Hakusho doujinshi that featured Chibi-Hiei, it can also apply to any other manga out there.
The Smileys(Emoticons) are used very often in the sentences of e-mails. They started in USA where the internet had also started of course. In Japan, the Smileys(Emoticons) grew in different manner from U.S.A. Now, there are several kinds of them.