Instructables

Retail April Fools Prank

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If you work retail yo most likely have a counterfeit detector pen lying around the register. This trick prays on people's insecurity about money so only do this to regular customers with a good sense of humor, I cannot be held responsible for you getting you butt handed to you. The way this works is when you mark a counterfeit bill with the pen the mark turns black otherwise it will be light brown or yellow. You have to make the mark come out black.

*Edit* This may or may not work outside the US. I'm am not certain on how to detect counterfeits elsewhere but the concept is simple and could be molded to your area most likely.
 
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Step 1: Material Needed

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Aquire a counterfeit detector pen, a black sharpie (the closer resembling to the pen the better) and choose your victim. I have done this with everything from a $1 bill to a $100 bill and people will believe it, just find someone with a good sense of humor like I said before.

Step 2: What to Do

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When the customer purchases their items grab the bill and look at it inquisitively like you suspect something's amiss. Grab your sharpie, being sure to conceal the pen as well as possible so they can't see it's a sharpie, and put a small black line on the bill approx 1 inch long.

At this point the customer will ask why you just checked it or something along those lines. State why it's a counterfeit and say you can;t accept it. Trust me on this when I say this is the hardest step, You have to keep a straight face.  The customer will be able to see it in your face or the way you speak and know right away that it's a prank.
bauerbach7 months ago
If you play this on a cop, you may get arrested for counterfeiting.
puzka3 years ago
Wow. I had no idea you had counterfeit detector pens in the US. Seems a bit 20th century :-) Wouldn't the bad guys just get a pen to check their counterfeits until they got it right? Or is the pen itself a joke ;-)
Scatmanbrandt (author)  puzka3 years ago
I know, I've been thinking of buying a uv detector for my store but it would probably never get used. I never trust the pens myself due to all the false readings and normally just check it by sight.
I dunno still sounds weird. Australian money is almost impossible to counterfeit.
Scatmanbrandt (author)  puzka3 years ago
That's what I've heard, it's easier to get your teeth pulled out by a donkey then use cash there.
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