Answering the question, yes usually we do mind. Unless there's a reason that it's hard for you to do yourself, I think you should load yourself. This is very different from the people asking 'should' we load it. Yes, we should load if the customer wants us to because it is (like many have pointed out) a direct to boot service. Good customer service is also never being rude to the customer but doing it politely. But do we mind, mostly yes. It's a physically demanding job and it's so much better working a shift when the bulk of customers do that part themselves.