Blockbuster is the worst place to rent videos, ever.
Their prices are higher than other stores and they don't have a good selection at all, they only stock up on junk you don't want to watch.
As lilmia said, if you keep your rental 1 day extra they will send you a COLLECTION NOTICE in the mail, and threaten to ruin your credit if you don't pay the late fee immediately. Most places just keep your late fees in your account and you pay the balance the next time you rent.
They put small videos stores out of business by opening Blockbusters at every corner and stealing their sales market. Most customers don't know any better, so they go to the most convenient store and get ass-raped by corporate evil.
And I guess you figured this out, but all their employees are complete retards, they know nothing about movies or which section a particular video might be in. They have to look in the computer for EVERYTHING.
STAY AWAY! 