One sunny day, a very forgetful professor got down on a grassy bank and began to look at the insects through his magnifying glass.
Now when the professor left for home, he forgot all about his magnifying glass, so straight away all the insects gathered round.
"This is just the thing we need!" and they jumped for joy.
"When the birds fly down to gobble us up, we'll give them a fright for a change!"...and so they did.
The birds had never seen such hideous creatures. They took off squawking with fright and never flew down again.
Adapted from 50 Bedtime stories,2002