I don't think it's aggression, I think it's being visually oriented and prone to distraction in a dynamic visual field.

(Dynamic visual field is the best phrase I could come up with for the experience of riding around and encountering an outdoor yoga class on a nice spring day... )

But seriously, I don't think it's aggression. I think it's a disposition to visual acquisition/categorization/response-appreciation in the lizard brain, which Way Back When was important to survival (of the species if not the induhvidual) but is counter-productive in most modern situations.
This is why BryBot needs to automate the drivers (ie me) out of cars.
and truly, no offense intended. Just speaking for my own fetish. I get distracted quite often and I really appreciate that which distracts me. I am all about that Lizard Brain thing.
What were we talking about?