Doing doughnuts is fun. Fun, that is, until your friend goes flying out the passenger side of your vehicle.

This video comes to us from San Francisco, California, where a dude was doing doughnuts when, all of a sudden, his buddy went flying out the passenger door.

The driver quickly stopped the car, collected his buddy, put him back in the car, and left, but not before the video made it’s way to social media.

If this teaches us anything, it’s to make sure your doors are locked and your seatbelt is securely fastened before doing any sort of car tricks, like doughnuts, for example.

[YouTube]