Have you ever seen a UPS or Fed-Ex warehouse? If it says "fragile" on it, the employees try their hardest to smash it.
Having done shipping and receiving before, I never fail to be amazed with the carelessness of the delivery and pick-up drivers. They just grab the boxes and chuck it into their trucks like they just do not give a shit. Seriously, it's insane. And the USPS isn't a whole lot better.
I like shopping online, but until the items I order are in my hands I'm always nervous about it.