Yep sounds normal to me too. They love to "hide" their food. The other day, I gave Coby a little biscuit. He was having trouble deciding where he wanted to bury it in the house. He finally chose a place on the carpet under the footstool. He carefully dug a little pretend "hole", carefully and secretly placed the biscuit in the "hole" and nosed the "carpet" back over the "hole" so no one could steal his treasure. Since this was on the carpet and was all pretend except in Coby's mind, Reggie came along and snatched the biscuit, leaving Coby looking like "Now how did he see that when I buried it so well????"
