microsoft store and 360 trade in

Has anyone traded a xbox 360 that has visibly been open? I wanna get a xbone but have two 360s so was gonna trade in one but scared they gonna reject it. I mean are they usually that anal about the trade ins or do they just wanna make some money and sell me a xbone?

thanks ahead of time

FYI. they didnt even bother to check if it was modded or if the sticker was intact.just booted it up and that was it.. didnt even give a controller with it.

Guess you traded in a modded system, eh?

Na wasn't model bit was fixed because of the o so common rrod. Took two in one was modded, but they didn't even care, just wanted to sell me a bundle