[Aimee123]

Hi all

I'm a newbie to this site. I'm really hoping you can all offer me some advice about dealing with puppy aggression.

My pup is 13 weeks old. She's the sweetest little pup 95% of the time. I would go as far to say she's a little angel.

This all changes at 9.30pm every night. She turns evil and gets really aggressive with me. She bites really hard and growls at me.its as if she turns into a different dog. My arms and hands are covered in bite marks and tonight she went for my face.

She play bites at other times of the day, but she doesn't do it hard. We yelp ouch, stand still and stop play and this works really well. However during her crazy time there is no way this would work. I can't even distract her with a chew.

The only thing I can do to make her stop is put her in another room to calm down. I leave her in there for a minute and she is fine for the first 30secs when she comes out. Then she starts it again.

I'm really confused about this sudden change in behaviour. She has plenty of exercise and stimulation, so it can't be boredom.

I'm worried this will escalate and she will be like this all the time.

Any advice will be greatly appreciated.

Many thanks

Aimee