It is beyond the comprehension of most humans to understand where humans come from. It would involve going deep into metaphysics and theology how this most perfect being was created and why. For a very simplified version. Watch Star Trek IV and replace the humpback whales with pandas. You have been warned.
I've watched this a couple times. I think I like it better without the sound effects. Also very interesting comment section on Youtube. "You are bad guy, but that doesn't mean you are bad guy"
I am pretty sure it's staged. So one guy is deliberately distracting the shop keeper while his buddy is shoplifting snacks. Then a third guy comes in, an armed robber. The two shoplifters are like, "Nah, that's crossing the line." One shoplifter distracts the gunman with a skateboard slide, then the other guy jumps in. The gunman turns to try to fend off his attacker and the other shoplifter hits hit. The shoplifters take the gun away from the armed robber and give it to the shopkeeper. The shoplifters flee with their stolen snacks while the shopkeeper points the gun at the robber. Legend has it the store owner gives them free snacks to this day.