Answer:
One day, a young crab and his mother were on the beach, spending some time together. The young crab gets up to move, but it can only walk sideways. His mother scolds him for walking sideways and asks him to walk forward by pointing his toes out front. The young crad responds, "I would like to walk forward, mom, but I do not know how to."
Hearing this, his mom gets up to show him how, but even she is unable to bend her knees forward. She realizes that she was being unfair, apologizes sheepishly, and sits back in the sand.
