Being Human - useless information of the day - Walgreens
If you'd like to buy certain products that are under lock and key in walgreens you must first call an attendant and point to the thing you want to purchase so they get it out for you. You generally have to already know what you want because they just hand you the product and lock the rest up very quickly, so if you'd like to read the back you have to hold the atendant so they can supervise your choosing process.
This would generally be just annoying if it wasnt for the fact that a lot of the products that Walgreens (at least in SF) keeps under lock and key are those of a somewhat private matter, so once in a while you can see an 18 year old guy picking out lube and condoms under the supervision of a 50 year old immigrant woman, a young woman reading the directions in the back of a pregnancy test or a yeast infection medicine with a 20 year old male attendant right behind her, or an older man trying to pick out rogain under the watchfull eye of an obvious part time attendant part time high school chearleader.
Now this varries from branch to branch so you can tell what kind of a population lives around the area from the Walgreens that is located there. For example, if you want a pregnancy test, razor blade or nikotine gum on 16th and mission you have to hold up the line and loudly direct the non-english speaking check out clerk to exactly the brand you want since they are located right behind the check out counter.