I'm in Nottingham / Derby - Long Eaton to be more precise. I discovered the aggression by accident. The Patterdale came in the room while my very slow picky collie was still eating. The patterdale had been fed and I didn't expect the attack at all.

The last thing I want is for my collie to develop a fear of his eating area. The collie was also a rescue and had been badly beaten and starved before I adopted him three years ago.

This creates a huge problem as it means I can't leave his treat ball out while I'm at work and it also means things like chews have to be carefully planned.