Can anyone in that country walk and chew gum@ the same time?Have they never turned on the tap and drank from it? (external - login to view)

Sheffield runners defy cancellation and roadblocks to finish half-marathon
Thousands of runners complete route after race is cancelled because of lack of water, despite police attempts to stop them

Louis and Grace Mitchell hand out water during the Sheffield half-marathon after organisers said their supplier had not delivered any.

There were chaotic scenes in Sheffield on Sunday as the city's half-marathon was cancelled at the last minute because of lack of water for its 5,000 runners.

South Yorkshire police initially tried to set up road blocks as thousands decided to run the route anyway, but later decided it was safer to let them complete the run.

Runners had gathered at the start when organisers announced news of the cancellation, saying they had been let down by the company that was due to supply water bowsers for the event.

Those who ran regardless were supplied with water by local people along the route.

Organisers tweeted: "It is with huge dissapointment [sic] & regret that we have been forced to cancel this year's race due to a problem with the delivery of water."

They later tweeted: "Those who crossed the finish line with their race number will be timed & we'll be providing a list of all finishers and their times."

South Yorkshire police said many participants had chosen to run. The force, which was already present on parts of the marathon route to close roads to motorists, added: "Working with the organisers, officers attempted to speak to participants who had chosen to run and divert them on to a shorter route to the finish line.

"However, officers have kept their positions and stance with the initial road closures to motorists to protect all the runners and ensure their safety is maintained."

Explaining the decision to cancel, Margaret Lilley, chair of the race organisers, told the BBC: "We had a problem with the supply of water. The company we had asked to supply bowsers for the route did not arrive this morning.

"We have scoured supermarkets around the city, but unfortunately we have not been able to secure enough water for the medical and safety officers of the race to say that it is safe to go ahead. We therefore took the very reluctant decision to cancel the race.

"Runners had waited half an hour or more to start. When we made the announcement the runners decided that they wanted to race anyway, and all 5,000 of them set off."