a couple is out on their first date and happen to walk by an apartment building where a newborn is being circumcised in a second floor bedroom.
Just as they are passing by, the mohel completes the task, tosses the foreskin aside, but it flies out an open window and lands on the young lady's shoulder.
Startled, she screams "what is that?"
Her date calmly picks it off of her shoulder, holds it in front of her mouth and says "try it. if you like it, I'll give you a whole one".