Why Did This Angry Guy Throw A Rock At A Lamborghini Aventador?

Alternatively, 'Watch a Lamborghini Aventador Get Stoned.' Ouch! What's going on here?

I don't see the complete picture here, but it's safe to assume that the Lambo driver has been hooning on the street while the other dude clearly has anger issues.

But who's the bigger asshole?

H/T to Jeffrey!