There could be one of several, but only he knows his agenda-you can only look at the clues. One is that he is worried about your knee surgery and wants to scare you into getting to 100% quickly. And good for you, telling him to move the date to accommodate you, as you have been on this string so long.
Well, for the last biopsy they told him to bring someone to drive him home...so that was when he told me it was being done that time. I will not be driving that soon after my surgery to be counted on for his driver this time around.