Art theft...?

Apparently someone at Anime Expo was selling my art...?
Was anyone there? Does anybody know anything? D:

Edit:
Apparently the pieces in question were . (I actually have seen these around the internet with the border containing my dA cut off. My signatures are actually kinda hidden in the pictures, though.)

The person who informed me of this said she wasn't sure about this year's AX, but she thinks she definitely saw someone at AX 2011.
I've never been to AX at all, so I have no idea... honestly I hope all of this is just some sort of misunderstanding... D:

to :
"No emotions for humans" or not, I don't find this 'awesome' or 'clever' at all... If you want to be cute please take it somewhere else. I find this quite serious (as would anyone in this situation) and I'd appreciate if you'd respect that.

Del, over and out.