Well in my opinion i like to see mine eager to work a burrow.Appearing after a rabbit has bolted into net. straight back down another.Doing that wee jig they do.And obviously not one who likes to get thier down when they should be working.To coin a phrase "Bright and bushy tailed".Its not something i have ever thought about its just something you know.Kinda like the silver kit i kept.Totally crazy but i just know it will be a good worker.