That’s a real concern if you’re at all worried about spoilers. It’s so easy just to have shit spoiled even if you try to avoid it. Passively hearing about it from school/workmates, social media, or even radio. The stupid radio spoiled the ending of Breaking Bad for me and I never got over it, I guess.
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.