I've been on the forum for a while now, and am finally introducing my pup, Brody. He is a Border Collie mix, 10 months old now. We adopted him from the local SPCA on February 15, 2013. He had been surrendered along with his littermate sister when their owner became too ill to care for them. He had been assessed as "barrier aggressive", but we found upon bringing him home that he is more shy/reactive. He was house trained by his previous owner and knew "sit". He had few other manners taught him, and was very mouthy and jumped up a lot, nipping me on the upper arms quite a bit on walks, or just generally if he got excited, like when I was folding blankets (go figure!). He is an avid couter-surfer, so we have had to learn to put food away if we aren't going to watch it (one incident of Brody eating the toppings off of 3 pieces of pepperoni pizza taught the teenagers this lesson pretty quickly!), and rinse any dishes that may be left on the counter. Over the 2 1/2 months we've had him, he has settled down quite a bit. He doesn't jump up or nip nearly as much, and he is learning some impulse control. He will go "get your tuggie" when I am folding laundry or making beds, so that saves my arms and the blankets. Some tricks/commands we are working on are: sit down stay sit-stay down-stay go to your spot shake/paw spin sit pretty paws up roll over play dead figure 8s touch ring bells to go out get your tuggie/ball get it/fetch (I know, not really a command, but it's what we work the hardest on, other than basic commands) We had a few ideas on what he was mixed with. He has webbed feet, so some kind of water dog. His ears are fully down, so maybe a golden or labrador, but the hairs on them are long and get all crimpy when they get wet. His tail curls around and touches his back so that it looks like a slice of pineapple. He is a tri-color, but his sister was more of a golden red and white. I was watching some videos of a duck toller screaming, and I remembered Brody doing something very similar to this when he wanted to get to a dog behind a fence and I kept him away. This is not his normal bark, but the further I pulled him from this dog the more excited he got, and the higher pitched his bark became. So now I wonder if his daddy might have been a toller. His sister definitely has that coloring, with a black nose and white blaze on the face. He is currently 54 lbs. and 24 inches at the shoulder, so already bigger than most toller males. Who knows, but it sure is fun to guess.