Keep the video

You decide to not only keep the video but also post the video online anonymously for others to see. The whole office reacts laughing their asses off, making memes out of it and editing it in funny ways. But a couple of hours later you get called out to HR and they ask you if you have anything to do with the prank and they ask you if you know anything about the video. And you say no to both but then someone comes in with a screenshot of you having ordered a bag of itchingpowder. They also take your phone and find the video. So you have no way to deny it anymore. They give you two options, either you get fired or you'll have to take a disciplinary course, which takes three weeks on location.

get fired

Go to the disciplinary course