Can he out-stubborn himself though? Vash is undeterred, and that piece of choi is still in play. "I don't want worm. Eat it, an' I'll stop asking!"

Other Vash needs an arm, he's decided. He won't have to be barefoot if he's got two arms. Where did the other Vashes get theirs? Knives might know. One of the Vashes will certainly be able to tell him, but he doesn't know where any of them are, and just shouting into the void with mindspeak seems like a good way to attract Earth plant attention. It'll have to wait until they get to July.