Overheard on the Subway

"Yeah, I kinda got in trouble for touching the art."

"Dude, you don't touch the art."

"Well I didn't realize it was art!"

"What do you mean you didn't realize, it was in a museum."

"Yeah, but it was, like, a glass box around a little red ball.  I thought it was just a glass box to protect it and that the ball was the art.  Apparently it was the whole thing."