Shopping Cart Fail!

So uhh idk what to put here and also here's the story!: In 08:21 In a Saturday morning some friends decided to try out a Shopping cart fail, When the person is recording a video and the guy in a shopping cart ready to fall down of the neighborhood downhill. But things gone wrong, there was a taxi driving and the guy was scared and the shopping cart falls down and his knee got injured, And the person was calling 911 for an ambulance. But the guy is okay and he got healed by an doctor