Useless trivia to impress your mates in the pub:-
* The mongoose was brought to Hawaii to kill rats but the project failed because rats are nocturnal while the mongoose hunts during the day.
* If you were locked in an airtight room, you'd die of carbon dioxide poisoning before you'd die of oxygen deprivation.
* Harvard uses 'Yale' brand locks on its buildings.
* The American Football 'huddle' originated in the 19th century at Gaudellet University, Washington DC, when the deaf football team found that opposing teams were reading their signed messages and intercepting plays.
* Carnivorous animals will not eat another animal that has been hit by a lightning strike.