Don't mess with my stuffing or gravy.
My brother in law tried to spice something up one year and made a gravy recipe that had apple cider in there. F*d up my whole dinner. DON"T F*CK WITH THE GRAVY.
I'll have popcorn during the black Friday afternoon movie marathon.
Wow! I cannot remember when you typed the F word twice in one post. He must have really F***ing pissed you off. 
Oh, he did piss me off. Thanksgiving is in my top 3 holidays of the year. Don't mess with it. I joked it off during dinner while we were eating, then afterward as the drinks started loosening my lips, I started telling him how upset I was over it. I even took control of the remote control, turned the football game off, and insisted he just focus on what I was trying to convey. He was smiling and making a joke of it during the whole discussion. Daddy, yelled at me to turn the game back on and when I refused, he promised to inflict bodily harm on Kevin if he ever did it again, if I would just turn the game back on. Promises were made by him.
Later that night I stirred it all up again and was actually crying. hahaha. We were all pretty sloshed at that time. But I never had 'cider' gravy ruin Thanksgiving again.
I assume you've seen or heard the Franks Red Hot Sauce commercials, where she says, "I put that sh*t on everything!" That is me at Thanksgiving with the gravy. I put that sh*t on everything. Except the pumpkin pie. Oh, and the green bean casserole.
Don't mess with the gravy recipe. If you do, be warned, there will be tears and you'll have to deal with an emotionally distraught inebriated female for the rest of the day.
Ruin my Thanksgiving Dinner, I ruin your whole f'n day.