Silly girl, you keep changing your mind on dog breeds? I think you're like me wishing you could have one of each

What I can say about border collies is they are very smart and VERY energetic so be prepared to give extensive exercise on a daily basis. I know you do some agility with Sadie and that'd be great to do with a border collie too.

This is Tobi, the border collie mix at my shelter right now: