My sister Isabel and I fought like cat and dog growing up, and as our parents were quite conservative traditionalists (not to mention regular churchgoers), one or the other of us (and more rarely both) would quite frequently end up getting our backsides tanned for our trouble.
The family implement of choice was the slipper, administered over the parental knee on the unfortunate sibling’s bare bottom. This would usually be administered by the parent of the same sex. Izzie would be led off to her room by Mum, while Dad would do the same with me. I tended to get done more than Izzie, as a boy and also two years younger, but she certainly got her share of smacked bottoms from Mum too.