Execute a perfect upside down coffee prank

Gameday! Bring on the best and most evil pranks. Humiliate those closest to you.

This devastatingly simple office prank requires nothing out of the ordinary to perform. In fact, you could probably execute this right now, without getting up from your chair.

It is the first time we've seen Desktop Ghost on Wonder of the Day, but it shall not be the last. They've got lots of DIY tricks from magic cigarettes to levitation devices.

Pick a mark (but be mindful of any delicate laptops nearby). It is just not as funny when you get a $2000 bill from IT.