Hi, Board! Have a question... someone I work with just got two lab puppies -- male and female out of the same litter. He's having a lot of trouble because they just play ferociously the whole time and are now vyying for dominance. And they have separation anxiety -- from EACH OTHER. If one gets taken out to go potty, the other one is FREAKING OUT until he sees his/her sibling again. I've always heard it's not a good idea to get two pups out of the same litter -- that the puppy should learn things from an older dog. Does anyone know of any books about this or have any advice? Thanks... Edited to add: He's also having trouble potty training because they're just into themselves and their rough play and don't pay attention.