Answer:
A biker's helmet is often called a brain bucket. Not wearing one is literally, "a no brainer." The pun also implies that one riding a bike without a helmet has no brains.
Explanation:
They are not happy about engaging in trade with humans, due to how things went with Mr. Jones.
You should always end on a note that’s likely to stick in the reader’s mind.
Luckily for our side, Jim was ready for the ball and easily caught it and tagged the runner out.