They have called for the resignation of the entire executive committee of the Kenyan Amateur Athletics Association (KAAA) and criticised the decision to exclude them.

BBC: Moses Tanui (left) and Haile Gabreselassie

So many children are in mainstream education simply because of the commitment of their teachers, who choose not to exclude them because they would have nowhere else to go.

BBC: children entering a school

In a way, it is uplifting to see South Africa's new black millionaires flashing their Rolex watches and being grovelled to by managers of the very restaurants that used to exclude them.

ECONOMIST: Paper lions

Daft I know, but insurers have no control over the quality and design of fences so seems easier for them just to exclude this totally.

BBC: Fergus Muirhead

This is because students who have taken AS-levels can choose not to "cash in" these exams - which in effect allows them to nullify their participation and to exclude their results from any overview.

BBC: A-level results

In 2011 stewards will be able to exclude drivers from a race or suspend them for the next grand prix.

BBC: F1 drivers face tougher penalties

One of them considers America the culmination of the Enlightenment, cleaving to a rational philosophy that would indeed exclude religion and its icons from the public square.

ECONOMIST: Lexington