When I got my last sheltie - the breeder had 5 for me to choose from. All sables and tri's. She really wanted me to take the runt - he was the smallest sheltie she's ever produced ( something she did not want, as she was very much trying to breed to the standard) and she really wanted an adult home for him. But after watching them for half and hour I decided he was too much dog for me.
He was very clearly top dog and she mentioned that he bit her twice while she was giving them their shots ( another first for her) - he might have been little but he was badass! Kali played with the other pups who were all piled onto my daughter's lap for a few minutes but then she wandered over to me climbed into my lap and fell asleep. That was it. Turned out to be a great pick as she was very sweet, more reserved than Hanna but not shy.
Same thing pretty much with Hanna - I can't resist the snuggle bugs and the fire crackers just don't do it for me. again couldn't have chosen better - she is very friendly and outgoing and a total sweetie.