hi there! i would not use the crate for time out. i would place hime into another room. i have just been through this with my 11 week rottie pup . this is what worked for me. if we were standing up at the time, turn your back on her. she will get down as this is not what she is wanting. time out for a few seconds, but do not allow her back into the room until she is quite. what wrks on one dog may not work on another. but the best thing i have found is to act as her mother would. in the litterpuppys play bite to see how far they can take things. litter mates will make a load wimpering noice and walk away to say they have had enough and not playing anymore. i made a high pitch wimpering noise with kisski my pup ,and she relased immeditely. another thing is the mother would grab at the scruff of a pups neck and move them when she has had enough. the pup will wimper ... but ont be fouled this does not hurt them its a natural reactin, as you are stopping her doing what she wants to do.(think of a child being told they are not allowed). she will get the hint that she is not to do this and stop. carry treats and only when she gets off or down straight away praise and treat her. she will prefer tyhis to the other. but try not to say no to her.because everytime she hears no , she will think she is in the wrong. try ahh ahh instead. hope this helps. let us know how you get on.