[Dakota]

I have also seen teams that obviously teach their batters to always run on strike three without regard to whether the pitch was dropped.

However, this is at the younger ages, and it was always my belief that this was a way to make them learn to not forget about the dropped third strike, rather than a way to try to get a RDC to throw the ball.

The younger kids (12U & below) are embarassed / upset with themselves for taking a called third strike or for the swing and miss, and most of the time don't remember to be aware of the dropped ball until the coach yells, "RUN, RUN!!" Of course, that also energized the defense and they usually easily throw the better out. So, the coaches drill into them to always run.

At least that is what those I am familiar with were doing.

Older ages, different story. Then it would be an attempt to catch the defense napping.