As a D&D player, that was my favorite part. The times when the party was getting creative and you could see the DM say, "Ok, roll for xyz to see if that works."
So many times when I thought, "Yeah, I could see us coming up with that." Followed by, "Oh yeah, our DM would definitely do that." And yet it managed to have enough heart and be generally entertaining enough that your non-D&D friends will enjoy it too.