I've done this a handful of times to new employees I can't push enough DO NOT do this when drinking. in fact I wont even do this unless my boss is with me and we have water and a bucket setup.
When people think of Cinnamon, they think of sugar/cinnamon mix, like what you'd get on your cinnamon toast crunch cereal. Cinnamon is not like that, when it's straight up it's one of the most powdery things I can think of. When a stupid cocky guy/girl eats it they put it in their mouth and when they go to breath it gets sucked down their throat and sticks to everything. so it causes the person to choke, not just a simple cough and choke, but choke to the point of the person turning different colors and almost passing out.
What makes it funny is once the person gets enough air back into their system they end up coughing/blowing the stuff out all over the place,
you CAN do it, but you need to stick the stuff in your mouth, breath in through your noise and out of your mouth as slow as you can while trying to get the cinnamon wet. once its wet you can swallow it. but cocky people don't do that, they just put it in their mouths and swallow.
Again I've done this a handful of times to employees and it's funny as hell, but I've come close with two people where I've worried about them passing out from not breathing.
oh don't forget the packet of saltine crackers in under 1 min...