Verkeerde Grappie

Koos van der Merwe and Piet entered a chocolate shop  

As they were busy looking around, Zuma stole 3 chocolate bars. As they left the store, Zuma said to Van 
"Man, I'm the best thief, I stole 3 chocolate bars and no one saw me. You can't beat that.

Van replied: "You want to see something better? Let's go back to the shop and I'll show you some real stealing." ... 

So they went up to the counter and Van der Merwe said to the shopkeeper:

"Do you want to see some real magic, man ?" 

The shopkeeper replied: "Yes." 

Van said: "Give me one chocolate bar." 

The shopkeeper gave him one, and he ate it. 

Van asked for a second bar, and he ate that as well. 

He asked for the third, and finished that one too. 

The shopkeeper asked: "But where's the magic?"

Van der Merwe replied: 

"Check in my friend's pocket, and you'll find all three bars of chocolate."