I would however, disagree that " he associates that sound with being fed " since snakes (including yours) have no ears & cannot hear as we do, &
while they can feel some bass notes (so can we) I don't think you could possibly be that noisy when you fetched your gloves.
Gotta double down on this one. Your snake definitely doesn't associate the sound of latex gloves with feeding time. Tough for an animal with no ears to associate sound with anything...