In the video, the driver (window down, brain completely inactive) drives up right next to the lion and starts taking video.
The lion takes no heed for a little while because he's a chill dude and is probably thinking something like "Whatever, man. You live your life, I'll live mine."
That's when the guy decides to push his luck and drive even closer to the lion. At this point, the lion stops and gives him a look like "Seriously, man, what do you want?"
When the guy continues to stare at the lion (window still down, now a mere 3 feet away), the lion lunges in with a small roar. The man than takes his first reasonable action: he freaks out, yelps, and closes the window.
The lion walks away saying "Yeah, that's what I thought. Back off."
Read more on the next page...