Red Superfly
You creepy little stalker
Correction:
The Joker didn't fall in acid. Batman deflected the bullet he shot at him and it caught his face, and then he fell into a vat of chemicals which bleached his skin and hair.
He had plastic surgery afterwards but he face was so screwed up that the doctor could only stitch his face up so it looked like that. His blood vessels and what not discoloured his lips so they were a bright red. His face didn't melt. WTF?
Correction 2:
Since when does skin look like that after being scarred? Look at Palpatines face. Where are the scars? Since when does his face look scarred? It's scary how so many people simply do not know how skin works. If he was scarred enough to cause that sort of disfugurring, then obviously there would be some blood. Since when do people not have blood? Since there is no blood, and he has healled up, it's safe to assume he isn't scarred. Full facial scars are usually never symetrical either. Scars don't look like old age. Scars to the face, also don't affact the hands.
Common sense people. He has ALWAYS looked like that. Senator Palpatine is his disguise. Now a theory is that he has lightning deflected back at him and he drops his disguise - that's a better theory. I bet thousands of idiots will interpret that as him getting scarred, even when they see it on the screen. "Ohh he is teh scarred!" No he isn't. I bet people are gonna think his face melted, just like how people think Joker's face melted. It's skin! Skin doesn't just move around or droop. I don't think anyone who has been electrocuted has ever started to look like they have suddenly aged.
What is it with you and acid? Since when would Yoda pick up some acid and throw it at him? Yoda. Isn't. Evil.