Do the integrated flash metal guides/regulators rattle in your 7D?

Just got back my 7D back from Canon after performing an AF fix/adjustment and I noticed something rattling inside the camera. When I shake the camera (shake is a harsh term, more like move the camera around in a quicker back/forth over/under fashion), you can hear tiny pieces of metal rattling. At first, it sounded like some pieces were loose inside the camera body but I think I've narrowed it down to the metal guides/slides/regulato​rs that guide the flash up/down on the camera as the noise seems to disappear when I have the flash up.

I can't recall ever hearing this before in the plethora of times I've handled this body. I was wondering if this was just something I had somehow not noticed (rather hard to believe, but possible) or if I need to let them know that this is something that occurred in transit or at the factory that now needs to be fixed.

No. Mine does not rattle there. But the eye piece does rattle, if I remove the eye piece it's silent no matter how hard it's shaken.

I thought it was the eyepiece as well, but it rattles when I hold the eyepiece stationary. This led me to popping the flash and seeing if the rattled disappeared, and it seems like it does.

The guides on my 7D don't rattle, but they do on my girlfriends 50D.