system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] What is the Joker's hygiene like?

Does he take care of himself? Does he brush his teeth and wear deodorant? Or is Harley making out with a dude who has bad breath and has B.O.?
gpt
As said, impeccable.

Yeah, he's perfectly content to get filthy when needed. If he has to or it's funny or part of whatever he thinks is the plot, he'll wade into a literal open sewer of literal human shit, beat your brains out with a brick, and come out covered with shit, your guts, blood, and brains, and he won't blink an eye. He might wave yours around as a prop on its nerve stem after he rips it out.

But later, he'll be sharp as a tack, with a pressed shirt, perfectly clean shaven, hair *just* right, and he could stroll right onto a red carpet or into a photo shoot. He's got an array of perfumes and colognes right alongside various bottles of Joker venom. If you even considered whether he's unwashed or unshowered while working, he'd be appalled. He's a professional.

This will be while he's forced to hide in squalor in a filthy warehouse where Harley's hyenas are chasing rats. 

He's also utterly insane, so he'll go through funks where he gets off the couch long enough to take a piss and get food from the fridge, and he won't shower or shave for days or weeks on end while he tries to think up a new scam or way to humiliate Batman. Once he does, though... he'll turn from dark and shoot you on sight to cheerful, 100% full of energy, and he'll dance his way into the shower to start all over.