A man drinks a shot of whiskey every night before bed, but his wife wants him to quit. She gets two shot glasses, filling one with water and the other with whiskey. After handing them to him, she pulls a worm from his bait box and says "I want you to see this."
She puts a worm in the water it, and it swims around. She puts a worm in the whiskey, and the worm dies immediately. "What do you have to say now?"
He responds: "If I drink whiskey, I won't get worms!"