Stealing from the Gym

I just wanted to see what the general opinion was of "borrowing" magazines from the gym or from work. What I mean is, is there an unwritten rule that I am not aware of that says that those magazines are up for grabs? Heres why I'm wondering: Monday night I'm at the gym on the elliptical machine reading a Shape magazine, which came straight off the gyms magazine rack. A young girl gets on the machine next to me and starts reading over my shoulder, I mean it was so bad that she would strain her neck every time I turned the page. I won't get into how annoying that was to begin with but eventually she asked me what magazine it was. I told her and she proceeded to read over my shoulder. Well I had about had it so when I was finished on the machine I said to her do you want this magazine to READ and she grabbed it out of my hand. Yes I understand that Shape magazine is pretty decent but is any magazine that good?? So I proceed to go onto other weight machines and notice that she tucks the magazine under her arm and walks out with it. I am kind of alarmed, I mean I guess she is stealing in my mind.

So last night I am at the gym again and I see her take a magazine off the rack and again take it home with her. I feel like such a gym natzi but is she the reason why all the magazines at the gym are ancient now? Its such a silly thing to steal a magazine if its even stealing! Inside I want to confront her and tell her that I will buy her the magazine but then its like get over it, its a dumb magazine. The funny thing was last night when I was picking out a magazine to read there was another lady there selecting one too and she said, "they should really get some new magazines in here." I wanted to tell her that we have a magazine theft that is deliberately taking the new issues! I know get over it. Whatever, just my pet peeves of the day!