I highly recommend you Do not try this at home lol... 911 was dispatched and my 6 year sister was traumatized for eternity.

I got a card from a card deck, carved a hole in the card so it would look like it was lodged in my arm if I put the card on there, and used that card cutout measurement and applied that cutout to a plastic knife I got from my local Dollar store. I then filled the hollow plastic knife with ketchup. After that, I placed the knife on my arm and started screaming in pain (I ran out of ketchup for this picture, no no fake blood is visible). After this, I waited for my sister to come home from school, and as soon as she entered I screamed bloody murder, and she ran up and saw what was happening and started crying and having a panic attack (keep in mind she was six years old), and she proceeded to call my mom, who told her to call 911. I ran upstairs as soon I heard on the phone with the operator and proceded to try and coax her down, but she had already hung up with the operator. Sufficient to say I was in deep shit. I was talked to by 2 officers and was grounded for a month and had to write an apology letter to the EMT's and my sister.