A man was leaving church one day...
A man was leaving church one day. The Pastor was standing at the door (as he always is) to shake hands with members of the congregation. He grasped the man by the hand and pulled him aside. The Pastor said to him,"You need to join the Army of the Lord!"The man replied, "I'm already in the Army of the Lord, Pastor."Pastor questioned, "How come I don't see you except at Christmas and Easter?"He whispered back, "Shhhhhhhhh. I'm in the secret service."

A lecture about English
A linguistics professor was lecturing to his English class one day. "In English," he said, "A double negative forms a positive. In some languages, though, such as Russian, a double negative is still a negative. However, there is no language wherein a double positive can form a negative."

A voice from the back of the room piped up, "Yeah, right."