Gas leaks, earthquakes and natural disasters that disrupt water lines and services, overflow toilets, shut-offs that are corroded and don't work.

Check out https://meetbeam.com/ its a SF based start up looking to disrupt the banking system and they way they use our money. 

The majority of these mass marketing ads are seen as sales like and disruptive.

The bottom has fallen out and the concern is that demand disruption will push those who didn't sell options into the red.

Before it became too disruptive, we rented an air mattress in the middle of our living room for $50/night. 

Predictive data analytics and cheap hardware have just recently been disrupting many industries with settled orthodoxies of operation and I believe property management is still operating on mostly the same ideas (again I am not a professional, just an observation).  

When the government has their hands in the market, it's causing disruption that needs to be compensated by things like higher rates, lower LTV, cleaner credit, points, etc.

I typically bundle showing appointments consecutively for my own efficiency as well as to minimize the disruption of our current tenant.

@Tyler Work - it was odd because the city spokeswoman said they have no issue with someone renting out up to five individual rooms in their home which to me is more disruptive to a neighborhood with all the cars, etc.

Upshot: The disruptive technology of the Internet is threatening the Realtor entitlement.