Although it's been a while since I've been there due to the pandemic, I can definitely think of a lot of unusual scenes I've been treated to as a result of working in an office downtown.
For the most part, it usually involves someone ranting about their big theory on society or religion or the price of Big Macs or whatever's bothering them that day. Such sights might be worth an amused look from time to time but I generally stick to my policy of "eyes front, don't engage, keep walking."
Of course, there are some situations where we might feel compelled to get involved if something harmful is happening but it generally costs us nothing to mind our own business.
And from the looks of things, that's what the people who filmed the full video wished one of their neighbors had done.