The President was visiting Europe, and in Spain he noticed an old man in a long flowing white robe with a long white beard and long white hair. The man had a staff in one hand and some stone tablets under the other arm. Excited, G.W. approached the man and enquired, 
"Aren't you Moses." The man ignored G.W. and stared at the ceiling.

President Bush positioned himself more directly in the man's view and asked gain, "Aren't you Moses?" The man continued to look up at the ceiling.

Exasperated, G.W. reached out, tugged at the man's sleeve, and asked again, "Excuse me, sir. But aren't you Moses?" The man finally responded in an irritated voice, "Yes, I am." 

G.W. asked him why he was acting so rude and Moses responded, "Purely self-defence, I assure you. The last time I spoke to a Bush I had to wander around in the desert for forty years!"