youtuber maddy wellborn decided to put it to a test. the challenge is to draw a black square on your skin and then use your phone to take a very close up picture of that black square. in the process of the flash and the taking of the picture, you get shocked. >> no, you don't. >> she's already drawn the square on her wrist. she's going take her phone and take close up picture of it. >> nothing happens. >> she tries it a second time. she appears to get shocked. she appears to be bad akking. she said she did actually feel something. >> the only thing i can think of that might be going on is when you hold the phone to a black mark like that, maybe just the flash of this going off might give a little bit of a heat signature and you might feel something. i can't imagine you would be shocked. we can try it with a sharpie. >> now we're going to put this right up to your skin. we're going hold it. >> no. >> flash went off and everything and i didn't jump out of my chair. >> i felt it with my phone. all right. i got my phone. >> bring on a whole