One night, Tom's house was on fire, but the fire alram was not
working! The fire was big and losses were severe.
Tom, "The fire alarm did not work! Everybody! What are we going to
do in the future?"
There was silence among the group as DIck, Harry, Sally, Joe and
others pondered. When suddenly...
Harry, "I know! All we have to do is to check the fire alarm 2 days
earlier before the next fire happen!"
