Thomas Alva Edison, the light bulb inventor, really had bright ideas.He had a summer house where he displayed all his inventions and asked his visitors to have a look at the exhibits.Every visitor had to pass through a turnstile to enter his garden .It needed a real
hard push. Once a visitor was annoyed greatly .He asked Edison Edison he should have turnstile at the garden at all in the garden.Edison replied that everyone who entered the garden,pumped seven gallons water into the tank on his roof!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What a shrewd person!!!!!!!!