The money jar

A man walks into a bar and sees a jar full of money; he asks the bartender what it’s for, and he replies, “There’s a cow in the back. If you can make her laugh, the jar is yours,” so the man goes out back and comes out a moment later and grabs the jar, The bartender goes to the back and sees the cow laughing. The next night, the process repeats, The man sees another jar of money and asks the bartender what it’s for. This time, he replies, “If you can make the same cow cry, the jar is yours.” So the man goes out back and comes out a moment later and reaches out to grab the jar. But the bartender stopped him and said, “hold on,” He went out back and found the cow bawling her eyes out. The bartender then asks, “How’d you get the cow to laugh one night and cry?” Finally, the man replies, “The first night, I told her I got a super long ding dong, and the next night, I showed her!”