Years ago I bought a 10 speed bike for $112, the cashier rang it up as $12!!!! I pointed it out to her and had to explain it twice before she finally (unconvincinly) charged me the full $112 for it!!! I can't believe she thought a bike sold for only $12!

My boss has a strict policy that his employees know how to make change, so his cpu program for invoices does NOT tell you what the change is, you have to figure it out yourself, although the boss does allow cheating using a calculator but basically prefers you use your brain!

When I worked in a grocery store they made sure we could make change in case the power went out we could add up the totals on a paper bag and jimmy the drawer and make change until we got all the customers out or the power came back on.