One scary Chinese character is 妬(투), which means "intense jealousy." It is composed of the characters 女(여), which means "woman," and 石(석), which means "rock." When I first saw this character, I wondered why the Chinese would use a woman with a rock to represent "intense jealousy," then it hit me. When I think of what a jealous Chinese woman might do with a rock, I cringe.
These days, 妬(투) seems somewhat anachronistic. If the Chinese were to update the character, I think they might replace 石(석) with 刀(도), which, of course, means "knife."