saying "eeeeeee"

John was excited tonight when Daddy came home from work. He has been getting more anxious about us going to work/school lately, I guess because we are working 5 days a week again. I stayed home with John and Charles went to work.
When Charles came back, John started running around the house. He was running back and forth across the length of the living room yelling "eeeeeeh! eeeeeeh!"
It was getting annoying so I stopped John and said "What are you doing? (angry tone of voice)"
and John replied " saying "eeee." Then he went upstairs.
Charles said to me well, ask a stupid question...