conspiracy theory.

Always.  Whenever I go to retrieve a book from the library stacks for research, it is ALWAYS on the bottom shelf.

My theories:

The library is trying to prevent me from doing my homework and getting good grades.
OR
Library employees enjoy it when I bend over with my backpack on and I almost topple over from the shifted weight.

... I'm banking on the second one. Real mature, guys.   Reeeeeeeal mature.