aiseyy.. don't be like that lah.. malu ooww 

p/s where have you been? long time no see? kucing apa macam?

bully and chase, as in hissing and making that loud fighting sound?

what cat is this? DSH is it? Is that cat OK with human? That cat hiss and has intention to attack (bite, and scratch) human? if yes, he/she might be one of the FERAL cat.

Stray and feral is 2 different type. Feral will never be tame, they will stay feral for the rest of the life and their generation too. While stray cat has the potential to be feral.

one thing... you male cat is not neuter right?

if he is neuter, at what age? kitten or adult?

if he is not neuter, then that answer everything. male cat that is not neuter yet will have that territory behavior. also if he is neuter at adult age, when he is already know how to set territory will also be too late.

i assume he is born with that aggressive genetic... u cannot do anything...

other fact, most vets will do check up on aggressive cats, because it link to health problem.

Cool, thanks for the info. So what are those 2 jabs anyway?
You'll get used to it. =/Have countless scars on me by my cats x.x Most are minor and healed properly...
When was he neutered? If neutered as an adult, meaning after he started roaming...Can't do anything already.

Check this out - How To Tame Wild Feral Cat

- Feral cats are cats that were probably born to wild parents and/or are wild in nature. Feral cats have had no human contact (usually unapproachable by people) and are very complicated to tame.

- Because feral cats are difficult to discipline, thus making them undesirable indoor pets, there are many rescue organizations that are dedicated to the trapping and spaying and neutering of feral cat colonies.

- Taming a feral cat can be a difficult proposition simply because they are not accustomed to humans. Depending on the level of their interactions with humans, some cats might be classified as semi-feral, total feral or even a converted feral cat.

- If you find a cat that is has been feral for a years, chances are that there is little to no chance of socializing it.

- You might have better success with a cat that is semi-feral. In these instances, they have had some limited human contact.

- If you want to attempt to tame a feral cat, remember that it can be hard work reaching out to the feral cat and getting them to trust you after being on their own. Sometimes, your efforts will not pay off for months, especially with older cats.

- Remember, not all feral cats can be socialized; however with love and patience, your time and efforts may be worthwhile.

Reference = http://www.thecatzine.com/2008/11/how-to-t...wild-feral-cat/