At one point a dealer said "that's your money, sir, pick it up."

Since we're all human (for now) appraisers are still susceptible to be skewed by events that occur during the process.

Smells like human pee.

That is human nature and no one can deny that.

I can do better on low-risk investments, than poor Mike OH does and I don't have to shoo off crack dealers and clean filthy toilets.

I've had it happen another time. 2 drug dealers arguing and suddenly there were guns drawn.

I have heard that you are only allowed to owner finance 2 or 3 houses and still get taxed the normal capital gains rate (on the interest you profit from the sale), anymore than that and the IRS will classify you as a dealer, and you must pay the capital gains on the full sales price of the house, even when you havent received full payment yet.

The minimum payment due is interest only, and the rates are usually adjustable so it is human nature to pay the minimum. 

Look at at dealers.

More money has been made in the past hundred years by entrepreneurs than the entire human history combined!