"Is this your box?"

I'm taking pinhole photography this semester and one thing you should know is that I have a wooden box that's my camera that has a little tiny hole that you have to keep uncovered for a long time in order to create a picture.  
Soooo I'm taking a picture of a window on the stairs in the art building and it's been open about 8 mins now and a class lets out, and a herd of people come down the stairs. Most people walked around the box, a couple understood what I was doing...but then...this girl reaches down picks up my camera, hands it to me, and says, "is this your box?" ................All I can say is yeah, thanks. I heard a couple people chuckle realizing that she potentially ruined my picture....but here it is and it came out