*Gets excited and accidentally electrocuted Nami in deep water, Nami dies and thus the sadists get a Strawhat death despite it already happening with Merry imo. Also retroactively with Brook and now with Luffy and Zoro even too.*
Honestly, Oda is more likely to have Nami become a nun or Amish or show Sanji in a happy romantic relationship or getting laid at least then killing off a SH permanently.