Should I just show up for the free food and jet?
Why would you just show up for free food?
It's not because I'm too cheap for food, but it's also because the food is so good.
It's mean to take advantage of someone's hospitality. You should be more grateful.
Did you hear me complaining? I'm going to show up and leave if I want to.
No, you weren't complaining, but I think it's a good idea to at least show more respect when you show up and stick around for a bit. You might actually really enjoy the event, or get to know the organizers to the point they'd welcome you all the time, and you'd get more food.