how do I turn OFF Smart lock. I was trying to secure me phone. I had turned on pattern. Then thought for extra security I would turn on Smart Lock. Note the pattern lock is gone. I want to feel that I can leave my phone on the coffee table and walk away.
Go to Settings—Security. 
  
  Under Advanced, tap Trusted agents as shown below.
  
  Tap Smart Lock (Google) to Enable\Disable it. You can also drag the switch to
  the Right\Left side to Enable\Disable it.