Twelve of December Twenty Twelve

Like this.

That day my colleague asked me if I have any celebration on 12/12/12.

I told her no. She says she will be celebrating with her family by having a good dinner. I asked her why. She says 12/12/12 comes once in a lifetime.

The next day I asked her again if she is celebrating 13/12/12.

She says no but I told her isn't 13/12/12 also comes once in a lifetime...?

Now you know why I don't have friends.