Simple Fraud

From: Mr. Black
Description: We’ve collected all the props that the performers used during the trick with the disappearance from the can of fog. To expose this trick, we have to reproduce the trick step-by-step. Get into the can, and don’t forget your tools. They’ll come in handy.
Completed: So, I lock you in the can, add some fog from the bottle, and then I turn the valves on the lamps. It’s done. Your turn now! What’s taking you so long? Did something go wrong? Bear with me, I’ll be there in a moment! I’m already opening the can... What? There’s no one inside. Only footprints next to the can...