Wolves will teleport to player when player goes far enough from where the wolves are and their chunk unloads

I have a kennel with about 10 wolves in my minecraft house. When I leave and travel a decent distance away sometimes all of the wolves will teleport to me. This is quite cumbersome..

As a side note, the constant barking even when they're sitting is annoying. Making them only bark when sitting when a mob or other player is 10-20 squares away would make them very useful, like real dogs.