any help would be greatly appreciated. I am a college student living with my girlfriend and we have a female cat who is the sweetest cat ever. her previous owners had other cats and she got along with them very well. i saw a post online where someone needed to get rid of their cat and wanted a good home for it, so i contacted him. i met him to pick up the cat, and he was also a very sweet cat who licked me and rubbed his head on me the whole ride home. as soon as i set the carrier in the house and opened the door, the cat started hissing non stop and swatting at everything near him. its been a couple days now, we give him space, but we have to watch our feet and be careful where we go because if we walk within a couple feet of where he happens to be hiding hel start hissing non stop and jumps at us instantly, swatting and nipping at our feet. is there anything i can do to make him feel more at home, i just want him to be happy.