Who are the handling agents for BA at Venice? Because BA of necessity use handling agents, although the personnel are in BA uniform, I find it's the exception for them to be helpful and frequently, downright rude and unhelpful. Prague has been one example, about which I complained to BA.
So I'm not surprised the ground staff walked away.
Not sure if the staff at Nice are BA employees: if they are handling agents, they are the exception. Similarly at Phoenix.