From my very limited knowledge there are strange bloodsucking rituals performed on newly circumcised infant boys. I'm not sure if its mainstream but is widely practiced in orthodox judaism. as i said my knowledge of this particular practice is sketchy at best mostly because frankly I find it hard to stomach. And also since I've been discussing jewish control with people in a facebook group I've been recently been getting vague text messages from blocked numbers. I'm probably taking a risk posting this.
I hope this isn't too /pol/