Rock You Like a Hurricane
We despise it when inanimate things overpower us. Consider the rock in the image below. On one side, it reads, “Turn me over,” with a pair of butterflies surrounding the words on both sides. Appearing innocent. Then comes the other side: “You just obeyed orders from a stone.” Do you feel foolish now?

You undoubtedly do. This is a simple yet effective practical joke ideal for the gullible. Place it near your arch nemesis’ workstation to see whether they comply with the rock’s wishes. Perhaps the rock might become The Rock? Consider what unimaginable power he would have!