Some don't. Owning a business doesn't guarantee it.

One of the reasons that non-prescription Pseudoephedrine sales are limited to two packages per month is because some businesses were selling it by the case to the meth makers. They knew, but shrugged and took the money.

Most, if not all libraries refused to keep track of what their patrons were checking out. You can say it was because it was anti-Consitutional, but the reason was probably what it would have cost.

Sue