Originally Posted by cabbagedad:
Yes, and another example, I believe, would be with a runner at first and defensive team has big lead and two outs late in the game. They don't hold the runner closely and let him take second if he chooses. They are trading the base for better odds at getting the out on a ball in play.
Actually, a catcher not attempting to throw out a base runner may or may not be defensive interference.
Your example is pretty much explained in the rules.