An artist dresses up in a panda costume, wearing a chest protector, and lets you punch him.
I'll let Hill explain further:
I'm a panda. You can punch me. I wear a chest protector. You wear boxing gloves. It's free. No parties and don't send me as a surprise. I prefer one on one, but roommates are fine.
It's a safe place to punch someone.
For our New York readers: This weekend, Hill will come to your house in Manhattan or Brooklyn, so you can punch him at your convenience. For an appointment, text 347-742-2293 or tweet @natexhill, and he'll be there with his chest protector. The Wall Street Journal has a great slideshow of people punching the panda on the street.
Photo by Rob Bennett for The Wall Street Journal