It's when the gurus take you off the beaten path with unacceptable practices that gets you in trouble and can ruin your reputation and business. 

Nothing bad came out of it for us (except that lost sleep for me), but it could just as easily have ruined us financially.

The seller got cancer, cannot work, and needs to liquidate assets.

The banks can ruin the economy and destroy half the small businesses in our country and subsequently the government can confiscate our income and give it to them.Systemic risk is ever present unfortunately.

The last two deals I tried to put together have been ruined by the Seller's Attorneys.

Although I would like to know if a applicant is likely to break my lease by dying of cancer. 

We don't permit indoor smoking in our properties-- it RUINS the paint.

Agree to things up front so you don't ruin every Thanksgiving from now to eternity.

You get some leverage but don't risk a nightmare ruining your dream scenario.

After he gutted the place, his wife was diagnosed with cancer.