Want to see some poor sap take a 50 MPH tennis ball right to the gonads all in the name of science? This is the video for you. My favorite part is when they go into a fancy animation of what is happening inside your body after the nut shot while this guy is still withering on the ground and pounding his fist against the floor.

SPOILER ALERT: The “science” is that you practically shit yourself with anticipation knowing the ball shot is coming and once you get hit your heart instantly jacks to red line while you try not to puke.