But I would still be cautious about this...
I would also state the obvious, that if its concealed, and there appears to be some conflict within the confines of this situation, who would really know and object??? As long as you don't go into the "school" portion of the building, and the library is made available to the general public...
I could flip a coin, but I'll still err on the side of "no" in this case...Depends on how much of a big deal I want to make of it...
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This is actually a great situation/topic to discuss...