Barb Devlin was at the airport to pick someone up, and she overheard this exchange...
He walked up to the man, who was staring at the ceiling, and "Excuse me sir, aren't you Moses?"
The man stood perfectly still and continued to stare at the ceiling, saying nothing. Again George W asked, a little louder this time, "Excuse me sir, aren't you Moses?"
Again the old man stared at the ceiling motionless without saying a word. George W tried a third time, louder yet. "Excuse me sir, aren't you Moses?"
Again, no movement or words from the old man. He continued to stare at the ceiling. One of George W's aides asked him if there was a problem, and George W said, "Either this man is deaf or extremely rude. I have asked him three times if he was Moses, and he has not answered me yet."
Finally the man, still staring at the ceiling, replied, "I can hear him just fine, and yes, I am Moses, but the last time I spoke to a bush, I spent 40 years wandering in the wilderness."