But yes, property taxes here are wildly irritating. 

@Danny Randazzo  Comment above was that it was an irritation to see the PM get paid more when a tenant non-renews, than if they renew. 

Came back with incessant cough and irritated throats.

Guest was irritated, and wrote review that the house had mold and 3 people were hospitalized. 

To irritate you. ;-)Actually it makes them feel good that they are now "connected" somehow.

Again, aside from the idea of water being wasted as a source of irritation for me, the raw cost of it from a business point of view is no matter, as long as you can roll it into appropriate rent.

They are out of Iceland and the barrier in language/verbiage was a constant source of irritation and problems.

Is it just the marketing that irritates these people?

(assuming they don't look to busy or come off as angry or irritable) I tell them I am interested in buying property in the area and then just chat for a minute and give them my card.

Assume it will happen, account for it in your math, and it will be a irritating situation instead of a devastating blow.And yes, when your rental (and lease options are really just rentals) is vacant you still have to make your payments.