Heh heh...not only did we have thermometer malfunction, there was also an issue with the oil...I didn't go to Sam's and buy the mofo 20-lb jug of peanut oil this year. Instead, I got two jugs of the Duke's peanut oil at Publix. Showed them to spouse; he said oh that's plenty. Thanksgiving morning he pours them into the bottom of the fryer and it only comes about 2 inches up. Of course, Publix is now closed.
SO, we fried the turkey in (1) peanut oil, (2) a quart of vegetable oil, (3) a small tub of Crisco, (4) the neighbor's quart of vegetable oil, and (5) just enough well-strained oil from the last time we fried fish to cover the turkey. Despite our best efforts to totally f it up, it turned out EXCELLENT!!! Beautiful and browned, with just a hint on the skin of old fish and melted plastic. We nicknamed it Chernobyl Turkey.
Past the skin, though, it was glorious. Brining actually saved the day!