We did almost the same thing with popcorn styrofoam packing material. We rigged the suspended ceiling with a switch and a piano hinge and as the offices were built inside an old warehouse we taped about 4 old refridgerator boxes togeather and filled em with the stuff with a forklift from outside in the warehouse.
We then wired the switch into the bosses center desk drawer by leaving thr drawer open about a foot. Well he walked into his office and closed his door and we heard him angrly shout .....stay out of my ......and slamed the drawer shut.
All functioned as designed...the entire room filled with packing foam peanuts . He had to kick out more ceiling tiles and escape through the roof as the door was blocked. Of course the wingnuts in our unit got to clean up the mess........:o)
He left us alone for a while......
HAHAHAHAHAHAHA
OMG HAHAHAHAHAHA