Another recent article from Tesco who are actively reducing the number of products stocked, to narrow a range in order to increase overall volume. I know that range of sandwiches available at Sainsbury’s for lunch within Newcastle’s Central Station is dictated by the time of day I visit.

Something as simple as a twenty minute delay will mean that I can’t get my daily favourite of Ham Hock & Cheddar Cheese sandwich, which does sometimes put me off and I’ll head somewhere else for lunch.

How do you think this could crop up in your exam?