Don, knee-time is coming up for you and your Dad...my Grandfather went through the Carotid surgery (successfully) at around 70, so I know it's touchy and unnerving. It sounds like your Dad is a tough old bird, so I'm sure he's ready to fight if need be, but let's pray that it's a quick and uncomplicated successful procedure.

Prayers from me and Stacy...keep us posted as you can.