If it matters, there's a place called Carey Hilliards in Savannah, GA. I've eaten many a meal from them, great fried chicken and shrimps. I always tipped a dollar and whatever change was left, under two total. Average meal price was about $12-$13 bucks for two. I usually tip 20% at a sit in, unless things were really screwed up, but I never got complaints on roughly 10% at the drive up. If they brought me a Bud on the side on a Sunday, I usually tipped two more.