You are on a horse, galloping at a constant speed.
On your right side is a sharp drop-off.
On your left side is an elephant traveling at the same speed as you.
Directly in front of you is a galloping kangaroo,
and your horse is unable to overtake it.
Behind you is a lion, running at the same speed as you and the kangaroo.
What must you do to get out of this highly dangerous situation?