Answer:
They don't forget.
What kind of dog chases anything red?
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 can honk without a horn?
It rows quickly with four oars but never comes out from under his own roof. What is it?
What is full of holes but still holds water?