A person who enjoys pain or humiliation, especially in a sexual context, is called a masochist. A person who likes to inflict pain or humiliation without consent of the victim is called a sadist.
----
"Munchausen syndrome is a condition in which a person intentionally fakes, simulates, worsens, or self-induces an injury or illness for the main purpose of being treated like a medical patient."Copied from eMedicineHealth -- see links
emo
A bUlly
A person who likes to hurt others is called a sadist.A masochist is a person who enjoys hurting themselves
you call them bitefull
a traveller...
Pyromaniac.
geek
belligerent
sharp
a geologist
a traveller...
Someone to avoid
There is no special name for a person who likes squirrels.
you tell someone who he likes and then you tell them that he was talkin about her