Harry Brignull joins us to talk about “dark patterns”. Harry coined the phrase back in 2010 to describe the design patterns used on websites to deliberately trick us into doing something. We discuss some examples as well as the ethics behind implementing them and ask if “light patterns” exist. We talk about how dark patterns go beyond the web and into service design. Should we avoid using dark patterns in our designs? Well, we think yes – so in that case, how?