Being Border Collie's Breeze and Dare spend a lot of time herding each other as well as everything and everyone else.
Who has the the tennis ball is the key. A bit like the game called tag. Apparently the boss used to call a game like this British Bulldog when they were at school.
Of course Auntie Breeze found it all quite enjoyable yesterday.
(The boss took these pictures with the new camera on different settings, the colours look very different.)