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Congratulations on you new little boy! Smart idea to send a blanket to the breeder! You will probably have some crying the first few nights as he adjusts. They all differ in how they travel so cross your fingers and be prepared for possible car sickness. Two of mine came home fine and one threw up on me the whole 2 1/2 hours home. Can't help with the potty training- I'm the world's worst!
All I can suggest is pick a method (crate, potty pads, x-pen) and just stick with it. Can't wait for the pictures! You are in for so much fun!
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"If you have men who will exclude any of God’s creatures from the shelter of compassion and pity, you will have men who will deal likewise with their fellow men." — St. Francis of Assisi, 1181-1226