I'd like to hear your opinions on this. On the night his parents were shot, did Bruce's sanity go out the window? It seems like most people would grieve, then move on after a death. But for some reason, Bruce feels the need to avenge them. Has all the stress and other psychos in his life made him as crazy as the villains he fights? Sound off.

I am sure that Bruce fits some diagnosis in DSM IV, but as far as calling him crazy or insane? No. He is functional, he understands the difference between right and wrong and so forth... So, obsessed personality, Yes, but not sane? No.

...If you don't count Batman of Zur-en-arrh... 

Short Answer: Yes

Crazy? Probably.  
 
Legally sane? LOL NO.

Depends on how you define crazy. He most certainly has severe mental problems, such as megalomania and some level of narcissistic personality disorder, not to mention the large serving of PTSD 

he's guy who goes out in a bat-based-design constume at night...why whould he be crazy?

he's guy who goes out in a bat-based-design constume at night...why whould he be crazy?

mentally unstable : yes 
totally insane : nooooo

Yes Batman is crazy. 

@The Poet: I actually know a guy from my home town who drives a hearse, dresses like Batman and hides in trees and the general consensus was  that he was bat-sh*t crazy (pun totally intended) 

@The Poet said:

he's guy who goes out in a bat-based-design constume at night...why whould he be crazy?

Says the guy who is obsessed with riddles. 

BB

@The Poet: I'm so glad I live 300 miles away from that place now, alot of people say there's no place like home, I say thank god for that

Morrison tackled this back in Arkham Asylum...it was kind of a yes and know answer. He is really similar to the people he locks up but he's better than them...kind of the moral of the story...
In the script Grant stated that this scene from the novel explains the whole point of the story.
http://www.youtube.com/watch?v=Tzyy74TFP84

Bats is totally bat-s**t (pun intended) but very stable at the same time, that's part of makes him so awesome. He clings to his humanity and reason while the villains he fights willingly flush it down the toilet. He never lets his mind be anything other than a steel trap, holding himself together to fight another day in his war (read "vendetta") on crime.

Batman is as insane as the rougues he apprehends. The only difference is that he operates on the right side of the law.

Yes. Very very crazy. 

look, you guys forget to take into account the world he lives in. like how stuff that might seem crazy here is perfectly normal in japan, so too are their cultural differences between our universe and the dc one. in the dc universe, super-hero/villaining can be considered genuine professions, and deciding to follow that path doesn't necessarily make you crazy, even if you lack superpowers.  batman's only crazy in the sense that normal people might consider skydiving crazy. 

he does not just switch you are leaving out a gap that covers many years which he received traing to become batman so he did grieve it was not forever and he than devoted his live to fighting crime.

Batman is as insane as the rougues he apprehends. The only difference is that he operates on the right side of the law.

Yup, batsh*t crazy. 
 
Can't believe no one made that comment yet :P

He's not crazy for wanting justice. He's just a little crazy the way he goes about getting it done. But if he wasn't would anyone want to read about him?

Well if by doing the same thing over and over and expecting a different result I would say he is somewhat crazy.

He has anger issues.

That kind of trauma leaves anyone more or less broken. It was nicely showed in infamous "All-Star Batman and Robin" where (goddamn) Batman was really twisted.

@Skyfire said:

Batman is as insane as the rougues he apprehends. The only difference is that he operates on the right side of the law.

No he doesn't because vigilantism is illegal, as is speeding, owning vehicles without proper registration, not to mention all of the illegally owned explosives.  Just because he beats up bad guys doesn't mean he operates on the right side of the law.

If dressing up like a bat and fighting crime makes someone insane then 99% of superheroes are insane.

@thegodamnbatman: they actually kinda are. But Batman among them definately has psychological problems. Its just that he uses them in sort of a positive way. Nobody ever sayd psychosis could only be detrimental. Exceptions etc

He's not crazy, and he's not insane, but something in his brain changed on that night. It could be a cool arc that he discovers that he has 2 personalities, Batman and Bruce, and Bruce has been trapped inside his consciousness since that night in Crime Alley

@hemehero: basically he is crazy.

It's how some perceive the character. Not a fan to be honest.

He at least still has compassion for others, this means his not entirely lost, he's kinda between.

He is kinda crazy yeah but not a psychopath.