2 kitten question...?

1) I accidentally got my cat some toy mice filled with cat nip, she is acting INSANE, climbing everything, bouncing sour the walls, attacking us all. I threw the mice away...When will she stop being crazy and be her sweet appease self again?

2) she is 8 weeks and i have had her for 2 weeks, she always uses her little box. But the issue is she plays within it all the time. Why? It makes a big mess and is gross. How can i stop her with out making her not want to turn to the bathroom there?
I'm not really sure just about about your second question (when I get my cat, she was already a year old, so I never had to settlement with litter box training) but catnip usually wears rotten within an hour at the absolute most.
I have a 4 month antiquated kitten who, for some reason, plays in the litter box every time after I've cleaned it...don't know why, I guess it's normal. She doesn't do it as much as she used to though. Most potential your cat will outgrow it as she gets older.
Answers:    1) You've learned your lesson. I'm not allowed to take my kittens catnip because when my 10 year old cat was little she would go totally INSANE. :D
Grab her and pat her until she get sleepy.

2) Take her out, and show her, her other toys. and start playing with them.
She's still a kitten. Get use too it. :) She won't be like that for long.
She will be fine. She is acting normal. She is in recent times high from the catnip. She will come down from her high,and be back to her conventional self.
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