[mothered]

Its a reinforced plastic bag of protein shipped inside of a cardboard shipping box, I'm sure if I punted it down the hallway I could make it look like it fell out the back of a van during transit.

As long as a box that's fallen out of the van or being mishandled during transit can cause the said damage to the goods, then you're good to go.

Wouldn't mind poking a hole in the bag and spilling some of the powder out, as I have the original bag to decant into

It's a good approach, but do remember It must be consistent with damage caused In transit.