You are driving in a car at a constant speed. On your left hand side there is a valley and on your right hand side there is a fire engine travelling at the same speed as you.

In front of you there is a galloping pig which is the same size as your car and you cannot overtake it.

Behind you there is a helicopter flying at ground level.

Both the giant pig and the helicopter are travelling at the same speed as you.

What must you do to safely get out of this highly dangerous situation?

Get off the merry-go-round - you're drunk!