Answer:
In many hall ways you would stand if not with me in hand.
I have two eyes in the front and a lot of eyes on my tail
What comes once in a year twice in a week but never in a day?
My keepers feed me colored balls. With sticks they store on my den walls. Sometimes I store them in my pouch. Sometimes deep in my belly; ouch!
I am commonly abbreviated to H
The answer I give is yes, but what I mean is no. What was the question?