You need better look after your dog, because if youīll not do anything, she will continiu do things like this...

How I understand, it was great dane yeah?

At this age they want to show their character, and you CANīt give up or just say - ops, what did you do litle silly doggy? ..... It willnīt be good... remember... have you ever read books about grat danes or something like this?

When I was about 3yrs old, my cousin had great dane, and it was very hard-training dog ....

Remember my words, you must do something.....