Take the Money and Run
Well, run. But, then come back… magicians are not thieves 🙂
This isn’t a real magic trick… just a clever trick.
Ask someone if you can borrow $20 to do a magic trick with.
Take the $20 they give you and place it in a container (a matchbox will do).
Then take $20 of your own and place it in the box.
Say “there is $40 in the box now, right?”.
When they nod, ask them if they would like to buy the box for a bargain at $30.
Many people will think this is a good deal and hand over the $30 for the box.
Hand them the box, and run… you just made $10!