Craggs, look back at the previous posts regarding interview questions. They have a laminated card with 30+ "tell me about a time when..." style. All quite hard to answer, especially if you come from a military background. (They specifically asked for me not to quote military examples).
I should have spent a bit more time thinking about these as it's easy to end up waffling whilst thinking of a time when you helped shape the outcome of a decision / moulded a team / were sensitive to the feelings of others - you get the idea.
KT