Now that you mention it, he did seem to get "lost" in the house yesterday. Jason said he called the boys as usual by yelling "outside"...the other two ran to the back door (on one end of the house) and Tahoe ran back to my bedroom (the complete other side of the house)...so Jason stood in the hall calling Tahoe to go outside and Tahoe seemed to keep running from the hall to the bedroom..totally confused.