Answer:
They don't forget.
I'm a lion with a human head. Guess my Riddle or you'll be dead.
What build its house with earthen string and ensnares its prey with a biting sting?
What has a coat? Hugs you not in sympathy? Whose smile you'd rather not see? Whose stance is a terrible thing to see? Who is it that brave men run away from? Whose fingers are clawed? Whose sleep lasts for months? And who's company we shunt?
What do you call a rabbit with fleas?
What is always coming but never arrives?