When Albert Einstein was making the rounds of the speakers' circuit, he usually found himself eagerly longing to get back to his laboratory work. One night, as they were driving to yet another rubber-chicken dinner, Einstein mentioned to his Butler (a man who somewhat resembled Einstein in looks & manner) that he was tired of speech making.
"I have an idea, boss," his Butler said. "I've heard you give this speech so many times. I'll bet I could give it for you." Einstein laughed loudly and said, "Why not? Let's do it!" When they arrive at the dinner, Einstein donned the Butler's black jacket and striped pants and sat in the back of the room. The Butler gave a beautiful rendition of Einstein's speech and even answered a few questions expertly.
Then a supremely pompous professor asked an extremely esoteric question about anti-matter formation, digressing here and there to let everyone in the audience know that he was nobody's fool. Without missing a beat, the Butler fixed the professor with a steely stare and said, "Sir, the answer to that question is so simple that I will let my Butler, who is sitting in the back, answer it for me."