give that kitten more time...

stray cats are very hard to train at this period. why? because they are abuse by people in the public. that's why they hissing at us, and afraid at us.

u just put the litter box, food and drink near him. than you go do your work without looking at him. lock yourself in the room eheheheh. let the kitten smell and get use to your house environment and slowly build the relationship with the surrounding and YOU.

if you have cage, try to put the kitten in the cage, with everything needed inside.

- how long has you keep that kitten?
- what's the kitten age?
- how many kitten in the house?

different kitten/cat, different attitude.

seriously your kitten now need more attention and need friends. by getting another kitten might helping you. your kitten will have another kitten as bestfriend to play around. they can get easily bored.

i have tried cage a kitten age 4 months old. he will keep making noise when looking at me. when i took him out from the cage, then only he will stop making noise. obviously he want to be with his owner. he's even happy when other cat/kitten is around him.

serious noise will lead to medical health issue. some kitten/cat make weird noise, and noisy if something happen to them that need your attention.

other than that, poo and pee all the house is also a sign of something wrong.

that's the biggest sign of stress, mood swing, etc.

they don't feel comfortable at all. like you said, he dont like other kitten too.

all my cats, when ever i take one, and bring to my room, that cat will make noise like calling for other cat.

why? because he/she get used to "many cats" in the house, then suddenly become alone in my room, he become stress. but when i bring other cats to my room, he's/she's ok already.

if your kitten used is stray kitten, he/she might having stress with being indoor. you need to give more time for him/her to settle down and become indoor kitten and cat.

4 days is too short you need more than that to make them get use with the environment, the house, you, and your housemate.

we never know the genetic background. if he is from a very vocal type of genetic then you have to get used with this ehehehe.

the protective kind of cat is also genetic - if it is serious genetic behavior - it can't be cure, but some may happen because of stress and later they become ok.

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here's a tip you might want to try...

Find a friend that have kitten almost the same size and age. Bring that kitten to your house, tell that person/friend you borrow for like 1 week or more

why that long? because all cat need atleast 4 days to get to know each other. most cats don't shake hand and smile on first meeting, they will hiss and angry - trying to tell that new friend that they are more powerful.

and see how thing goes. it may be annoying on first 1 week. but don't worry kitten can be friend faster than adult

if you kitten suddenly become ok while having another kitten in the house play with him, that's mean all this while he need friend.

he make noise now because you only keep him for 4 days, you need more time to make him used to the surrounding and become one of human pet.

good luck