I really like him, too. I think he is the most fair-minded, balanced poster on this board. He’s the kind of guy I wish I lived next door, so I could go over to his house and take him freshly baked bread and then raid his bookcases for something to read. I just have a feeling he has a killer library.
They’ve been in all our local grocery stores for the past month or so. Christmas-time seems to be the peak season for them. Have you looked for them?
If you do find them, I recommend popping the whole thing into your mouth at once, rather than biting into it. (Unless you happen to he a shock-tarts fan, in which case biting into it will give you a better burst of sour, with less tempering by the sweeter peel.)
That’s just because you never see the posts I compose and then delete! 
But thanks all! Must find kumquats soon!