My favorite one is probably when I was working at a retail Forex where consumers would try to make money on currencies. There were a lot of support calls where

My favorite one is probably when I was working at a retail Forex where consumers would try to make money on currencies. There were a lot of support calls where they disputed the price they saw and the price their order was entered. My solution was to log the price when they click the trade button. The interesting bit wasn't that I logged the currency pair and price, instead I did a tree walk of all the Java Swing GUI elements in the open trade window and render them into the log file as ASCII using "(o)" for options, "[x]" for checkboxes, "[text_____]" for text fields, etc. I wasn't sure if it would work as the elements were rounded to the closest line, and sometimes just inserted a line between two others if it was close to half a line in-between etc. The ASCII 'screenshots' came out beautifully. From then on when a call came it, we told them to use the view log menu item, scroll to the trade time, then they'd shut up quick. A picture is worth a 1000 words indeed.