>>16565494
Is it an indoor cat?
If not, throw the litterbox away and force it to litter outside.

Or say to your sis that you've arranged for the vet to put the cat down because she's not taking care of her.

Post, talk and treat it as your cat. Make it your cat, post Facebook updates with your cat, talk about how you care for it. She'll get pissy and want the cat, and as long as you don't back down she'll either do the work or accept that its your cat.

>>16565503
It's 100°F here and we have coyotes, so no. that would be giving them a free meal.

>>16565503
also I've grown too attached to this cat to do that.

augh sorry if it seems like i'm being difficult

>>16565504
well that's a thought. don't know if that'll fix it, but it'll definitely piss her off.

>>16565504
This is the best response to this

>During the other 10% I've asked her to clean the litter box but she pouts and makes up some BS excuse saying

"my problems are your problems"
-every woman ever

i know exactly what you're talking about.

my younger sister got turtles. you know, some small kind, living in a water tank. the filter broke, and the five poor turtles had to live in filthy stinking water, so disgusting i smelled it in my adjacent room. often, she'd sleep at a friend's place, sometimes over weekends and the animals would npt get fed for 2 or 3 days. she eventually got fed up with the horrible smell and gave them away.

then she got rats. two of them. you know how rats are great pets when they're domesticated? well what she didn't expect was that to domesticate rats, you have to actually spend fucking time with them. ofc she didn't, she always had some friends or some new fuck buddy in mind, and so they were wild. she got two more. two escaped and henceforth lived wild in her fucking ugly mess of a room. you can't imagine the stink. i till lived in the room next to it. she eventually got rid of those too, though whether she gave them to somebody or she just let them loose outside, i'll never know.

i was sad for the animals, and i fed them secretly. that was all. i kept complaining about the smell. my parents complained, but didn't do anything. fucking useless.

she grew out of it. i don't know where, but she found some fucking sense. she has no pets now, is becoming a nurse... well she got her shit together. took her about 23 years to do so, but... well, it's something.

Why the fuck did she get a cat to begin with if she's not the slightest bit interested in it in any way whatsoever?
I'll never understand the logic behind people who do these kinds of things....

unfortunately none of this is legally neglect (aka animal control would keep making her pay fines until she fixed her shit or seize custody of the cat)

you can take the cat to the shelter as a stray you found (assuming it doesn't have a microchip) and your sis will have to pay to get the cat back or he/she will be adopted out to someone who gives a shit, you can maybe repeatedly move the litter box into her room to piss her off with the smell of festering cat shit until she cleans it, etc. you get the idea

or you could just straight up say unless she gets her shit together you are surrendering the cat to the shelter, or just suck it up and continue caring for the cat