I wouldn't worry about the sink behaviour. Every cat I've know loves to lap out of the sink. This does not mean she will graduate to sitting on the hot burners of the stove. She is a kitten though, so just in case, you should leave those burner covers or a pan on the burners until they cool down.
As for the running out of the apartment. Have you tried stomping your feet really loud before you enter the door? Sometimes I bark at my cats
. Loud noises seem to deter them from running out into the great outdoors. Also, I often approach the door with my heels and legs firmly together and my toes turned out. This serves as a way to block her from leaving. When you enter the door, open it just a crack and slowly make you way inside. Eventually you should be able to stop this behaviour, but right now, she is still a kitten and you can't blame her for her energy.
As for tearing around your apartment, that is also normal kitten behaviour, especially when she has a buddy to hang out with. This should lessen as she gets older, but my seven year old cat still does it occassionally :roll: . What I've done is to remove breakable items from the living room because that is where they're main romping transpires. Since she is not bothered by water or loud noises, have you tried removing her from the surface she is scratching and moving her to the scratching post? Sometimes moving her paws like she is scratching will help her get the idea. I've also heard that a can full of coins is a good disciplinary mechanism.
As for the running out of the apartment. Have you tried stomping your feet really loud before you enter the door? Sometimes I bark at my cats
As for tearing around your apartment, that is also normal kitten behaviour, especially when she has a buddy to hang out with. This should lessen as she gets older, but my seven year old cat still does it occassionally :roll: . What I've done is to remove breakable items from the living room because that is where they're main romping transpires. Since she is not bothered by water or loud noises, have you tried removing her from the surface she is scratching and moving her to the scratching post? Sometimes moving her paws like she is scratching will help her get the idea. I've also heard that a can full of coins is a good disciplinary mechanism.