The only ones I've seen are fat. They are tall but really fat. I'm in new zealand so legally they aren't allowed to do anything except ask you to leave so they are meant to look intimidating to prevent any trouble starting in the first place instead of being able to actually stop trouble. For some reason people think a big fat fuck is intimidating. I don't get it. Whenever I've seen them they're usually sitting in a corner reading a news paper and being a fatass. But then again the usual clientele of McDonalds wont be any fitter