Conversation from Earlier Today at Work

Consultant: "So, why does your system do it this way?"
Me: "Because that's the way I found it, and I bolted on the new functionality using the existing framework."
Consultant: "But that's the wrong way to do it."
Me: "Wrong?"
Consultant: "It isn't very efficient."
Me: "And I just explained why I did it that way."
Consultant: "No, you just said what you did. That's not WHY."
Me: "Then here's the why. I'm not reengineering this site. I'm not rebuilding it from the ground up. I only had a month to do this. To rebuild from scratch would take at least 3 months and your bosses wouldn't pony up the money to my company."
Consultant: "Hey, man, relax."
Me: "Oh, I'm relaxed."

*shrug*

Programmers are weird. Myself included.