Because they were old rivals who used to fight years ago?
when a rival of yours that you used to duel a lot pulls up suddenly, you would 100% think he's pulling up to fight lmao
You are literally disproving your own idiotic headcanon lmao
Why the fuck would mihawk suddenly have apprehensions about fighting shanks because he only has one arm, if he literally fought a one armed shanks in the past?
You didn't think this through huh clown?