Yup. In fact, I heard the DYKWIA story many times, but my favorite is:

A man tried to get to the front of the check in line and the agent told "Do you know who I am?"

The agent picked up her microphone and announced, "We have a passenger here who doesn't know who he is. Is there anyone here who can tell him?"

"Screw you!" the DYKWIA yelled at her.

"I'm sorry, sir," she replied, "but you will have to wait in line for that, too."