My 13 week old puppy know's it's not a good idea to play rough with me or bite me too hard, but, I think he thinks my children are toys, I know he is just playing with them but, my kids don't realize this and they def. act scared and just scream like babies instead of standing up and telling Harley NO in a deep firm voice. How can I either teach my children how to show Harley who is boss or how can I teach Harley it's not ok to play like that with them or anyone else.

Training that deals with dogs and children must be done by a professional. I highly recommend getting a trainer who can come to your house and work with your whole family... this is the best thing you can do.

I may look into that, Thanks!

Of course if the finances will allow, hah.

I understand money is tight but trust me... training is MUST. Untrained dogs end up in shelters and can become a danger to the community, you get what you pay for so find a good trainer and you will be all set. I also recommend the book "Leader of the Pack" By Nancy Baer and Steve Duno as well as "Be The Dog" By Steve Duno. Good Luck!