In this Black Friday Special of The Evil Tester Show Podcast we consider lessons we can learn from discount sales, retail under pressure, and confidence tricksters and expert provocateurs.We discuss:- The Black Friday Software Testing Game- Oracles- Observation- Evidence- Belief- UK Sale of Goods Act - what is a sale?- What is an expert?- How to communicate like an expert- Automating through the GUI- Options for Automating- Testing for Confidence- Communicating Confidence- You can be confident that something is wrong- Confidence doesn't mean Goodness Show notes: http://eviltester.com/show/003-black-friday-2017/