system
Given the following post, respond as if you're commenting on Reddit:
human
[The Joker] How far does he go with the crazy chaos gimmick?

Like does he still use a toilet like a regular sane person? Or does he just crap wherever he wants and never washes his hands. Does he ever just crap his pants to make a point? 

Does he ever just run around naked for the thrill of it.. and then crap himself? 

Does he eat food properly cooked? Or does he eat anything he can find. Like live rats? 

Does he sleep in a normal style bed? Would he just sleep in a pile of his crap on the floor? 

If he has a medical issue will he seek treatment? If a tooth goes bad will he try to get it fixed or just deal with the pain?
gpt
For the most part, most versions of the Joker are capable of basic upkeep and hygiene. He can shower, shave, get his hair cut and keep himself in clean suits, though the means by which he achieved those aims may be grossly antisocial (pray for his tailor, for his is a life of terror). A sick Joker would abduct a medic or break into a hospital.

Even with "grungier" versions of the Joker, there's a question of how much of it is a put-on. The Nolanverse Joker comes off as the sort of guy who can't tell you when he showered last, but he can also clean up and act with great caution and forethought *when it serves his needs*, implying that his "greasebag hobo clown" appearance may be crafted to a certain degree, or a completely artificial facade.