My older sister would always get so annoyed when I would do this, especially with the drinks
I always chose to let my brother cut. Then, even if they were perfect halves, I still laughed like a maniac and acted like one piece was clearly better.
My younger brother and I would have big arguments about whose turn it was to be the one to choose 😂
Just goes to show - there is literally no way to keep siblings from arguing over nothing lol
Independent third party cuts, siblings blind vote. Two votes for the same piece => cutter adjusts to make that one smaller. Repeat until siblings vote for different pieces.