I am going to pick on one of my friends here because he used to say this a lot. It deals with an old away message I had, it was Puddle of Mudd's "Blurry" lyrics (back from before I got really into Europop).
FIRST CONVERSTION.
My friend: Hey man, are you still planning on going to that ballgame tonight?
Autoresponse from me: "Blurry" lyrics
My friend: Nice song but that away message is kind of depressing there, mate!
SECOND CONVERSATION.
My friend: Sorry I had to leave math class early today, my headache was out of control. Did you get the assignment?
Autoresponse from me: "Blurry" lyrics
My friend: Dude, you should change that away message. It's been depressing for a whole week now.
THIRD CONVERSTAION.
My friend: Dude, CHANGE YOUR AWAY MESSAGE!
Autoresponse from me: "Blurry" lyrics
The third one struck me as funny. I actually saved it as a text file on my computer so I could show it to him later just to see his reaction (he groaned and said that it was from my "depressing away message" phase).
Currently my away messages either say what I'm doing, are cheering on some sports team (right now it's the Detroit Tigers), or are lyrics from "Long Way Home" by ATB. I think I still have "Blurry" saved as a preset one but I haven't used it in almost two years.