You are just in your room, until your sister came in with bottle of ketchup puts some ketchup at her face to make it look like wounds and throws the bottle of ketchup, she ran away with a fake scared look

You put some inside your mouth to taste it

Your parents came in angry with your sister, you go to your sister and wipes off the ketchup at her face to prove it's fake, she then punched you and hit the wall, you suddenly throw up the ketchup and they thought it was blood