Find Target goes to 0,0,0 pos without Target

[AndyMurdock]

In this file TargetZreo.max , in event 004 Find Target, when a particle does not have a particle target it heads to position 0,0,0.
Is this correct behavior?
I'd like for the Find Target to not have particles head to that position and instead just ignore Find Target.
It seems that pos 0,0,0 is being put in as a default target.

Thanks
Andy