Want to make a man feel really inadequate?

“Is this what I think it is?”
You bet your ass it is. It’s a condom ruler! How convenient. Now when he says he’s 7 inches. You can LOLz at him and say, “No silly. You don’t measure from your ballz. Here let me help. Hmmm……4.5. Are you sure you’re all the way hard?” and proceed to walk out.