I actually come up rather sick explanation of Joker's scars. Since it
is somewaht Freudian too, i present it hoping i am not counted as
sickest bastard around
Joker had oral sex with his father and that's what Joker means by dad
inserting knife in his mouth eg. inserting something bad in his mouth.
It also explains Joker moving and acting like pedophilian mentioned in
this thread
http://www.rottentomatoes.com/vine/...29&page=5&pp=30 at
rottentomatoes.comIt well may be Joker was subdued, because he kept his urge for
children in control and he was pouring out his pain other ways.
Anyway, Joker taking world as crap instead of joke is rather close of
this Marvel comics character
http://en.wikipedia.org/wiki/Madcap_(comics