Snowboarding023 Archivesnot for the faint of heart.

In what had potential to be an incredibly stressful viewing experience, professional snowboarder Martin Agerstig heads directly at a moving car, only to turn out a miraculous backflip.

Swedish film group RackartygarnaTV tracked Martin's efforts to complete the "world's first snowboard backflip on a running car" in a video with plenty of bone-crushing (and window-crushing) failures.

Here's an anxiety-inducing clip of the experience.

This insane backflip off a moving car. RIDER: @martinagerstig #snow #SHAREtheFeed #CHECKtheFeed #snowboarding @checkthefeed

A video posted by Jacob Starnes (@ja.starnes) on Jan 7, 2017 at 4:39pm PST

Do not try this at home. Or work. Really just anywhere. Don't do it.