I'm new to this site and Jake is my first dog. He's just turned 4 months. I've reduced him from 4 feeds to 3 feeds a day. Can anyone tell me when i can reduce him to 2. I'm also having problems with assertiveness. I'm able to train him to lie down, sit and give a paw but when he gets excited he constantly bites me. The firmer i am the more he thinks im playing. My husband just has to look at him and he sits down, which is really frustrating! The more i shout the more excited he gets!! can anyone help?