@Joe: Nah man we don't let her anywhere near that thing, even if the fries have been in 20 minutes past their timer (this does not happen, but still, point made). We LIKE the kid, remember?
We never let her do anything dangerous, and she never asks us why. She only ever really takes orders from customers, and she asks us to tell her when the windows or stainless steel faces need to be polished. We're like "Nah they are fine" and we save it for later because the chemicals are not something I'd want to have anywhere near an 8-year-old kid. That and having a sweet little kid off polishing windows by herself would just plain look sad. We like keeping her out at the front counter helping our counter person take orders, and handing out condiments and drink cups and such as needed. She's got a hell of a lot of personality for such a tiny little person and people really love seeing her.