Faux Murder

I am with a group of women and some adolescent boys are "pretending" to stab each other. But there is blood and screaming. Then the woman and I are scared and try to call for help, but the "victim" stands up and says, "it's okay, it was only a joke." They want us to help them, somehow, but we are all too afraid and confused. Wake up in a panic once again. I hope this trend does not continue.