Hello all, I know the first thing to do when a cat starts peeing outside of the litter box is to rule out a health issue but I know for a fact this is a behavioral issue. There is an un-nutered male cat in the neighborhood and we haven't been able to catch him for the past few months. Right after we started seeing him hanging around, my female cat started peeing in very specific places, under windows, next to doors, all places we have seen or heard this male cat. Then on top of it, my sister got an un-nutered female kitten who my cat is pretty scared of. I asked them to wait until I got home to properly introduce them but as far as I know, they just stuck the kitten in my cats face and of course, my cat hissed and all of a sudden my cat is now the enemy because she hisses at the kitten. The kitten now gets up in her face and will eat out of her food bowl WHILE my cat is trying to eat. And when she hisses to tell the kitten to back off, she gets yelled at or scared away by my family because she's "being a spoiled brat".the litter boxes are also an issue. We have two for each cat, one in my room, one in my sister's, and then two in the "gathering" areas of the house.but the kitten will only use my cat boxes, and my cat will only go to the bathroom in The box in my room or when she knows the kitten is in my sister's room for the night. The peeing has gotten worse and more frequent since the kitten, and I've tried explaining to my parents and sister that the kitten using my cat litter box is not going to work and boundaries need to be made . I was basically told my cat needs to suck it up. And now we are to the point where it's " your cat has to go, or be locked in your room." Which is completely unfair to my cat and myself, as my parents know I would never give my cat up and also know I have no where else to go. I've tried collars, sprays, litter attracted, but the issue doesn't seem to be going away any time soon. I'm not really sure what else to do. My poor cat went from being really social to staying in my room almost all day long because she doesn't like the kitten. I've set up cat trees and shelves so my cat can be up off the ground but the kitten manages to get up there, either on her own or by a family member and makes my cat feel like she's being forced out of her safe space. I'm not really sure what else to do or try other than start looking for someplace else to live so my poor cat doesn't feel terrorized all the time. Any advice or help would really be appreciated, and I apologise for such a long post. Thank you all!