Okay, so I got an amp delivered today and it was severely underpadded. It came shipped in the original box with nothing to keep the amp in place and only one wrap of the small bubble packing wrap.

EDIT: When I lean it to the left and right (gently), it sounds like there's something moving around in there. It sounds equivalent to a rice grain moving around.

I'm pretty nervous about this. Is there any way I can test this from home? Or do I need to go to a shop and test it?