My view .... a person asks me to help out, but restricts what I can take ... I knew that going in. If I choose to go, I follow my buddies wishes. The way i see it, unless I go on my buddy's place I might not get to hunt at all. And for sure doe meat tastes great .... and it'd be a thrill to see a big buck.
Having said that, the club I am in has a buck kill limit (1/season) and a fee for doing so applied to a guest. Its not much of a fee. Just enough to make the guest thinik about it. But at the same time that guest can earn that buck by doing club beneficial work .... working on food plots, bush hogging woods roads, camp house upkeep, fence and gate repair, etc.