I have 2 dogs (2yr bernese mountain dog female) and (5yr ish golden x lab female). I have a very good foundation on their training but this is one hick up i'm having a hard time with. When someone rings the door bell they are taught to immediately kennel up. I found that placing their kennel where they can still see the front door was wayyyy easier then expecting them completely out of sight. (Is that ok?). But the main issue is when they are given the "Okay" to come out of the kennel, they RUN to the guest and greet them (semi politely) while desperately trying to get more attention then the other dog. I tried having them come out of the kennel one at a time but they just feed off each others energy too much. Should I start by training them on this separate before bringing them together?