That fine line is called "catching'! They don't call fishing, catching, but not all anglers are successful.
Brian, cath, obviously is short for catheterization, which is the procedure Don will undergo first thing tomorrow morning. Of course, that may be the name of the operating room nurse as well.

I hope to talk with Don as soon as he gets out of the Operating Room and cath lab tomorrow, and if and when I do I will provide an update.
Gary

_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)